[PATCH AUTOSEL 5.16 023/217] ARM: shmobile: rcar-gen2: Add missing of_node_put()

[PATCH AUTOSEL 5.16 023/217] ARM: shmobile: rcar-gen2: Add missing of_node_put()

[Sasha Levin]

From: Wan Jiabing <wanjiabing@vivo.com>

[ Upstream commit 85744f2d938c5f3cfc44cb6533c157469634da93 ]

Fix following coccicheck warning:
./arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c:156:1-33: Function
for_each_matching_node_and_match should have of_node_put() before break
and goto.

Early exits from for_each_matching_node_and_match() should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Link: https://lore.kernel.org/r/20211018014503.7598-1-wanjiabing@vivo.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index ee949255ced3f..09ef73b99dd86 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -154,8 +154,10 @@ static int __init rcar_gen2_regulator_quirk(void)
 		return -ENODEV;
 
 	for_each_matching_node_and_match(np, rcar_gen2_quirk_match, &id) {
-		if (!of_device_is_available(np))
+		if (!of_device_is_available(np)) {
+			of_node_put(np);
 			break;
+		}
 
 		ret = of_property_read_u32(np, "reg", &addr);
 		if (ret)	/* Skip invalid entry and continue */
@@ -164,6 +166,7 @@ static int __init rcar_gen2_regulator_quirk(void)
 		quirk = kzalloc(sizeof(*quirk), GFP_KERNEL);
 		if (!quirk) {
 			ret = -ENOMEM;
+			of_node_put(np);
 			goto err_mem;
 		}
 
-- 
2.34.1


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[PATCH AUTOSEL 5.16 029/217] usb: dwc3: meson-g12a: fix shared reset control use

[Sasha Levin]

From: Amjad Ouled-Ameur <aouledameur@baylibre.com>

[ Upstream commit 4ce3b45704d5ef46fb4b28083c8aba6716fabf3b ]

reset_control_(de)assert() calls are called on a shared reset line when
reset_control_reset has been used. This is not allowed by the reset
framework.

Use reset_control_rearm() call in suspend() and remove() as a way to state
that the resource is no longer used, hence the shared reset line
may be triggered again by other devices. Use reset_control_rearm() also in
case probe fails after reset() has been called.

reset_control_rearm() keeps use of triggered_count sane in the reset
framework, use of reset_control_reset() on shared reset line should be
balanced with reset_control_rearm().

Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reported-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20211112162827.128319-3-aouledameur@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-meson-g12a.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index d0f9b7c296b0d..bd814df3bf8b8 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -755,16 +755,16 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 
 	ret = dwc3_meson_g12a_get_phys(priv);
 	if (ret)
-		goto err_disable_clks;
+		goto err_rearm;
 
 	ret = priv->drvdata->setup_regmaps(priv, base);
 	if (ret)
-		goto err_disable_clks;
+		goto err_rearm;
 
 	if (priv->vbus) {
 		ret = regulator_enable(priv->vbus);
 		if (ret)
-			goto err_disable_clks;
+			goto err_rearm;
 	}
 
 	/* Get dr_mode */
@@ -825,6 +825,9 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 	if (priv->vbus)
 		regulator_disable(priv->vbus);
 
+err_rearm:
+	reset_control_rearm(priv->reset);
+
 err_disable_clks:
 	clk_bulk_disable_unprepare(priv->drvdata->num_clks,
 				   priv->drvdata->clks);
@@ -852,6 +855,8 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev)
 	pm_runtime_put_noidle(dev);
 	pm_runtime_set_suspended(dev);
 
+	reset_control_rearm(priv->reset);
+
 	clk_bulk_disable_unprepare(priv->drvdata->num_clks,
 				   priv->drvdata->clks);
 
@@ -892,7 +897,7 @@ static int __maybe_unused dwc3_meson_g12a_suspend(struct device *dev)
 		phy_exit(priv->phys[i]);
 	}
 
-	reset_control_assert(priv->reset);
+	reset_control_rearm(priv->reset);
 
 	return 0;
 }
@@ -902,7 +907,9 @@ static int __maybe_unused dwc3_meson_g12a_resume(struct device *dev)
 	struct dwc3_meson_g12a *priv = dev_get_drvdata(dev);
 	int i, ret;
 
-	reset_control_deassert(priv->reset);
+	ret = reset_control_reset(priv->reset);
+	if (ret)
+		return ret;
 
 	ret = priv->drvdata->usb_init(priv);
 	if (ret)
-- 
2.34.1


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[PATCH AUTOSEL 5.16 054/217] EDAC/synopsys: Use the quirk for version instead of ddr version

[Sasha Levin]

From: Dinh Nguyen <dinguyen@kernel.org>

[ Upstream commit bd1d6da17c296bd005bfa656952710d256e77dd3 ]

Version 2.40a supports DDR_ECC_INTR_SUPPORT for a quirk, so use that
quirk to determine a call to setup_address_map().

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lkml.kernel.org/r/20211012190709.1504152-1-dinguyen@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/edac/synopsys_edac.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 7d08627e738b3..a5486d86fdd2f 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -1352,8 +1352,7 @@ static int mc_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (of_device_is_compatible(pdev->dev.of_node,
-				    "xlnx,zynqmp-ddrc-2.40a"))
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT)
 		setup_address_map(priv);
 #endif
 
-- 
2.34.1


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[PATCH AUTOSEL 5.16 057/217] soc: imx: gpcv2: Synchronously suspend MIX domains

[Sasha Levin]

From: Marek Vasut <marex@denx.de>

[ Upstream commit f756f435f7dd823f2d4bd593ce1bf3168def1308 ]

In case the following power domain sequence happens, iMX8M Mini always hangs:
  gpumix:on -> gpu:on -> gpu:off -> gpu:on
This is likely due to another quirk of the GPC block. This situation can be
prevented by always synchronously powering off both the domain and MIX domain.
Make it so. This turns the aforementioned sequence into:
  gpumix:on -> gpu:on -> gpu:off -> gpumix:off -> gpumix:on -> gpu:on

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/imx/gpcv2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index b8d52d8d29dbb..e757044ab7512 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -377,7 +377,7 @@ static int imx_pgc_power_down(struct generic_pm_domain *genpd)
 		}
 	}
 
-	pm_runtime_put(domain->dev);
+	pm_runtime_put_sync_suspend(domain->dev);
 
 	return 0;
 
-- 
2.34.1


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[PATCH AUTOSEL 5.16 058/217] ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART

[Sasha Levin]

From: Lukas Bulwahn <lukas.bulwahn@gmail.com>

[ Upstream commit b0100bce4ff82ec1ccd3c1f3d339fd2df6a81784 ]

Since commit 4b563a066611 ("ARM: imx: Remove imx21 support"), the config
DEBUG_IMX21_IMX27_UART is really only debug support for IMX27.

So, rename this option to DEBUG_IMX27_UART and adjust dependencies in
Kconfig and rename the definitions to IMX27 as further clean-up.

This issue was discovered with ./scripts/checkkconfigsymbols.py, which
reported that DEBUG_IMX21_IMX27_UART depends on the non-existing config
SOC_IMX21.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/Kconfig.debug            | 14 +++++++-------
 arch/arm/include/debug/imx-uart.h | 18 +++++++++---------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 98436702e0c7e..644875d73ba15 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -410,12 +410,12 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on i.MX25.
 
-	config DEBUG_IMX21_IMX27_UART
-		bool "i.MX21 and i.MX27 Debug UART"
-		depends on SOC_IMX21 || SOC_IMX27
+	config DEBUG_IMX27_UART
+		bool "i.MX27 Debug UART"
+		depends on SOC_IMX27
 		help
 		  Say Y here if you want kernel low-level debugging support
-		  on i.MX21 or i.MX27.
+		  on i.MX27.
 
 	config DEBUG_IMX28_UART
 		bool "i.MX28 Debug UART"
@@ -1481,7 +1481,7 @@ config DEBUG_IMX_UART_PORT
 	int "i.MX Debug UART Port Selection"
 	depends on DEBUG_IMX1_UART || \
 		   DEBUG_IMX25_UART || \
-		   DEBUG_IMX21_IMX27_UART || \
+		   DEBUG_IMX27_UART || \
 		   DEBUG_IMX31_UART || \
 		   DEBUG_IMX35_UART || \
 		   DEBUG_IMX50_UART || \
@@ -1540,12 +1540,12 @@ config DEBUG_LL_INCLUDE
 	default "debug/icedcc.S" if DEBUG_ICEDCC
 	default "debug/imx.S" if DEBUG_IMX1_UART || \
 				 DEBUG_IMX25_UART || \
-				 DEBUG_IMX21_IMX27_UART || \
+				 DEBUG_IMX27_UART || \
 				 DEBUG_IMX31_UART || \
 				 DEBUG_IMX35_UART || \
 				 DEBUG_IMX50_UART || \
 				 DEBUG_IMX51_UART || \
-				 DEBUG_IMX53_UART ||\
+				 DEBUG_IMX53_UART || \
 				 DEBUG_IMX6Q_UART || \
 				 DEBUG_IMX6SL_UART || \
 				 DEBUG_IMX6SX_UART || \
diff --git a/arch/arm/include/debug/imx-uart.h b/arch/arm/include/debug/imx-uart.h
index c8eb83d4b8964..3edbb3c5b42bf 100644
--- a/arch/arm/include/debug/imx-uart.h
+++ b/arch/arm/include/debug/imx-uart.h
@@ -11,13 +11,6 @@
 #define IMX1_UART_BASE_ADDR(n)	IMX1_UART##n##_BASE_ADDR
 #define IMX1_UART_BASE(n)	IMX1_UART_BASE_ADDR(n)
 
-#define IMX21_UART1_BASE_ADDR	0x1000a000
-#define IMX21_UART2_BASE_ADDR	0x1000b000
-#define IMX21_UART3_BASE_ADDR	0x1000c000
-#define IMX21_UART4_BASE_ADDR	0x1000d000
-#define IMX21_UART_BASE_ADDR(n)	IMX21_UART##n##_BASE_ADDR
-#define IMX21_UART_BASE(n)	IMX21_UART_BASE_ADDR(n)
-
 #define IMX25_UART1_BASE_ADDR	0x43f90000
 #define IMX25_UART2_BASE_ADDR	0x43f94000
 #define IMX25_UART3_BASE_ADDR	0x5000c000
@@ -26,6 +19,13 @@
 #define IMX25_UART_BASE_ADDR(n)	IMX25_UART##n##_BASE_ADDR
 #define IMX25_UART_BASE(n)	IMX25_UART_BASE_ADDR(n)
 
+#define IMX27_UART1_BASE_ADDR	0x1000a000
+#define IMX27_UART2_BASE_ADDR	0x1000b000
+#define IMX27_UART3_BASE_ADDR	0x1000c000
+#define IMX27_UART4_BASE_ADDR	0x1000d000
+#define IMX27_UART_BASE_ADDR(n)	IMX27_UART##n##_BASE_ADDR
+#define IMX27_UART_BASE(n)	IMX27_UART_BASE_ADDR(n)
+
 #define IMX31_UART1_BASE_ADDR	0x43f90000
 #define IMX31_UART2_BASE_ADDR	0x43f94000
 #define IMX31_UART3_BASE_ADDR	0x5000c000
@@ -112,10 +112,10 @@
 
 #ifdef CONFIG_DEBUG_IMX1_UART
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX1)
-#elif defined(CONFIG_DEBUG_IMX21_IMX27_UART)
-#define UART_PADDR	IMX_DEBUG_UART_BASE(IMX21)
 #elif defined(CONFIG_DEBUG_IMX25_UART)
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX25)
+#elif defined(CONFIG_DEBUG_IMX27_UART)
+#define UART_PADDR	IMX_DEBUG_UART_BASE(IMX27)
 #elif defined(CONFIG_DEBUG_IMX31_UART)
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX31)
 #elif defined(CONFIG_DEBUG_IMX35_UART)
-- 
2.34.1


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[PATCH AUTOSEL 5.16 062/217] soc: ti: pruss: fix referenced node in error message

[Sasha Levin]

From: Jan Kiszka <jan.kiszka@siemens.com>

[ Upstream commit 8aa35e0bb5eaa42bac415ad0847985daa7b4890c ]

So far, "(null)" is reported for the node that is missing clocks.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/d6e24953-ea89-fd1c-6e16-7a0142118054@siemens.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/ti/pruss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c
index 49da387d77494..b36779309e49b 100644
--- a/drivers/soc/ti/pruss.c
+++ b/drivers/soc/ti/pruss.c
@@ -129,7 +129,7 @@ static int pruss_clk_init(struct pruss *pruss, struct device_node *cfg_node)
 
 	clks_np = of_get_child_by_name(cfg_node, "clocks");
 	if (!clks_np) {
-		dev_err(dev, "%pOF is missing its 'clocks' node\n", clks_np);
+		dev_err(dev, "%pOF is missing its 'clocks' node\n", cfg_node);
 		return -ENODEV;
 	}
 
-- 
2.34.1


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[PATCH AUTOSEL 5.16 066/217] mxser: keep only !tty test in ISR

[Sasha Levin]

From: Jiri Slaby <jslaby@suse.cz>

[ Upstream commit 274ab58dc2b460cc474ffc7ccfcede4b2be1a3f5 ]

The others are superfluous with tty refcounting in place now. And they
are racy in fact:
* tty_port_initialized() reports false for a small moment after
  interrupts are enabled.
* closing is 1 while the port is still alive.

The queues are flushed later during close anyway. So there is no need
for this special handling. Actually, the ISR should not flush the
queues. It should behave as every other driver, just queue the chars
into tty buffer and go on. But this will be changed later. There is
still a lot code depending on having tty in ISR (and not only tty_port).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211118073125.12283-4-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/mxser.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 93a95a135a71a..27caa2f9ba79b 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -262,7 +262,6 @@ struct mxser_port {
 	unsigned int xmit_head;
 	unsigned int xmit_tail;
 	unsigned int xmit_cnt;
-	int closing;
 
 	spinlock_t slock;
 };
@@ -918,7 +917,6 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
 		return;
 	if (tty_port_close_start(port, tty, filp) == 0)
 		return;
-	info->closing = 1;
 	mutex_lock(&port->mutex);
 	mxser_close_port(port);
 	mxser_flush_buffer(tty);
@@ -927,7 +925,6 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
 	mxser_shutdown_port(port);
 	tty_port_set_initialized(port, 0);
 	mutex_unlock(&port->mutex);
-	info->closing = 0;
 	/* Right now the tty_port set is done outside of the close_end helper
 	   as we don't yet have everyone using refcounts */	
 	tty_port_close_end(port, tty);
@@ -1683,7 +1680,7 @@ static bool mxser_port_isr(struct mxser_port *port)
 
 	iir &= MOXA_MUST_IIR_MASK;
 	tty = tty_port_tty_get(&port->port);
-	if (!tty || port->closing || !tty_port_initialized(&port->port)) {
+	if (!tty) {
 		status = inb(port->ioaddr + UART_LSR);
 		outb(port->FCR | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
 				port->ioaddr + UART_FCR);
-- 
2.34.1


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[PATCH AUTOSEL 5.16 067/217] mxser: don't throttle manually

[Sasha Levin]

From: Jiri Slaby <jslaby@suse.cz>

[ Upstream commit c6693e6e07805f1b7822b13a5b482bf2b6a1f312 ]

First, checking tty->receive_room to signalize whether there is enough space
in the tty buffers does not make much sense. Provided the tty buffers
are in tty_port and those are not checked at all.

Second, if the rx path is throttled, with CRTSCTS, RTS is deasserted,
but is never asserted again. This leads to port "lockup", not accepting
any more input.

So:
1) stty -F /dev/ttyMI0 crtscts # the mxser port
2) stty -F /dev/ttyS6 crtscts # the connected port
3) cat /dev/ttyMI0
4) "write in a loop" to /dev/ttyS6
5) cat from 3) produces the bytes from 4)
6) killall -STOP cat (the 3)'s one)
7) wait for RTS to drop on /dev/ttyMI0
8) killall -CONT cat (again the 3)'s one)

cat erroneously produces no more output now (i.e. no data sent from
ttyS6 to ttyMI can be seen).

Note that the step 7) is performed twice: once from n_tty by
tty_throttle_safe(), once by mxser_stoprx() from the receive path. Then
after step 7), n_tty correctly unthrottles the input, but mxser calls
mxser_stoprx() again as there is still only a little space in n_tty
buffers (tty->receive_room mentioned at the beginning), but the device's
FIFO is/can be already filled.

After this patch, the output is correctly resumed, i.e. n_tty both
throttles and unthrottles without interfering with mxser's attempts.

This allows us to get rid of the non-standard ldisc_stop_rx flag from
struct mxser_port.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211118073125.12283-15-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/mxser.c | 36 ++++++------------------------------
 1 file changed, 6 insertions(+), 30 deletions(-)

diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 27caa2f9ba79b..3b5d193b7f245 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -251,8 +251,6 @@ struct mxser_port {
 	u8 MCR;			/* Modem control register */
 	u8 FCR;			/* FIFO control register */
 
-	bool ldisc_stop_rx;
-
 	struct async_icount icount; /* kernel counters for 4 input interrupts */
 	unsigned int timeout;
 
@@ -1323,11 +1321,14 @@ static int mxser_get_icount(struct tty_struct *tty,
 	return 0;
 }
 
-static void mxser_stoprx(struct tty_struct *tty)
+/*
+ * This routine is called by the upper-layer tty layer to signal that
+ * incoming characters should be throttled.
+ */
+static void mxser_throttle(struct tty_struct *tty)
 {
 	struct mxser_port *info = tty->driver_data;
 
-	info->ldisc_stop_rx = true;
 	if (I_IXOFF(tty)) {
 		if (info->board->must_hwid) {
 			info->IER &= ~MOXA_MUST_RECV_ISR;
@@ -1346,21 +1347,11 @@ static void mxser_stoprx(struct tty_struct *tty)
 	}
 }
 
-/*
- * This routine is called by the upper-layer tty layer to signal that
- * incoming characters should be throttled.
- */
-static void mxser_throttle(struct tty_struct *tty)
-{
-	mxser_stoprx(tty);
-}
-
 static void mxser_unthrottle(struct tty_struct *tty)
 {
 	struct mxser_port *info = tty->driver_data;
 
 	/* startrx */
-	info->ldisc_stop_rx = false;
 	if (I_IXOFF(tty)) {
 		if (info->x_char)
 			info->x_char = 0;
@@ -1543,9 +1534,6 @@ static bool mxser_receive_chars_new(struct tty_struct *tty,
 	if (hwid == MOXA_MUST_MU150_HWID)
 		gdl &= MOXA_MUST_GDL_MASK;
 
-	if (gdl >= tty->receive_room && !port->ldisc_stop_rx)
-		mxser_stoprx(tty);
-
 	while (gdl--) {
 		u8 ch = inb(port->ioaddr + UART_RX);
 		tty_insert_flip_char(&port->port, ch, 0);
@@ -1558,10 +1546,8 @@ static u8 mxser_receive_chars_old(struct tty_struct *tty,
 		                struct mxser_port *port, u8 status)
 {
 	enum mxser_must_hwid hwid = port->board->must_hwid;
-	int recv_room = tty->receive_room;
 	int ignored = 0;
 	int max = 256;
-	int cnt = 0;
 	u8 ch;
 
 	do {
@@ -1596,14 +1582,8 @@ static u8 mxser_receive_chars_old(struct tty_struct *tty,
 					port->icount.overrun++;
 				}
 			}
-			tty_insert_flip_char(&port->port, ch, flag);
-			cnt++;
-			if (cnt >= recv_room) {
-				if (!port->ldisc_stop_rx)
-					mxser_stoprx(tty);
+			if (!tty_insert_flip_char(&port->port, ch, flag))
 				break;
-			}
-
 		}
 
 		if (hwid)
@@ -1618,9 +1598,6 @@ static u8 mxser_receive_chars_old(struct tty_struct *tty,
 static u8 mxser_receive_chars(struct tty_struct *tty,
 		struct mxser_port *port, u8 status)
 {
-	if (tty->receive_room == 0 && !port->ldisc_stop_rx)
-		mxser_stoprx(tty);
-
 	if (!mxser_receive_chars_new(tty, port, status))
 		status = mxser_receive_chars_old(tty, port, status);
 
@@ -1833,7 +1810,6 @@ static void mxser_initbrd(struct mxser_board *brd, bool high_baud)
 		tty_port_init(&info->port);
 		info->port.ops = &mxser_port_ops;
 		info->board = brd;
-		info->ldisc_stop_rx = false;
 
 		/* Enhance mode enabled here */
 		if (brd->must_hwid != MOXA_OTHER_UART)
-- 
2.34.1


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[PATCH AUTOSEL 5.16 068/217] mxser: increase buf_overrun if tty_insert_flip_char() fails

[Sasha Levin]

From: Jiri Slaby <jslaby@suse.cz>

[ Upstream commit eb68ac0462bffc2ceb63b3a76737d6c9f186e6de ]

mxser doesn't increase port->icount.buf_overrun at all. Do so if overrun
happens, so that it can be read from the stats.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211118073125.12283-17-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/mxser.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 3b5d193b7f245..39458b42df7b0 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1536,7 +1536,8 @@ static bool mxser_receive_chars_new(struct tty_struct *tty,
 
 	while (gdl--) {
 		u8 ch = inb(port->ioaddr + UART_RX);
-		tty_insert_flip_char(&port->port, ch, 0);
+		if (!tty_insert_flip_char(&port->port, ch, 0))
+			port->icount.buf_overrun++;
 	}
 
 	return true;
@@ -1582,8 +1583,10 @@ static u8 mxser_receive_chars_old(struct tty_struct *tty,
 					port->icount.overrun++;
 				}
 			}
-			if (!tty_insert_flip_char(&port->port, ch, flag))
+			if (!tty_insert_flip_char(&port->port, ch, flag)) {
+				port->icount.buf_overrun++;
 				break;
+			}
 		}
 
 		if (hwid)
-- 
2.34.1


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[PATCH AUTOSEL 5.16 070/217] tty: serial: imx: disable UCR4_OREN in .stop_rx() instead of .shutdown()

[Sasha Levin]

From: Fugang Duan <fugang.duan@nxp.com>

[ Upstream commit 028e083832b06fdeeb290e1e57dc1f6702c4c215 ]

The UCR4_OREN should be disabled before disabling the uart receiver in
.stop_rx() instead of in the .shutdown().

Otherwise, if we have the overrun error during the receiver disable
process, the overrun interrupt will keep trigging until we disable the
OREN interrupt in the .shutdown(), because the ORE status can only be
cleared when read the rx FIFO or reset the controller.  Although the
called time between the receiver disable and OREN disable in .shutdown()
is very short, there is still the risk of endless interrupt during this
short period of time. So here change to disable OREN before the receiver
been disabled in .stop_rx().

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20211125020349.4980-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/imx.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 90f82e6c54e46..6f7f382d0b1fa 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -486,18 +486,21 @@ static void imx_uart_stop_tx(struct uart_port *port)
 static void imx_uart_stop_rx(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
-	u32 ucr1, ucr2;
+	u32 ucr1, ucr2, ucr4;
 
 	ucr1 = imx_uart_readl(sport, UCR1);
 	ucr2 = imx_uart_readl(sport, UCR2);
+	ucr4 = imx_uart_readl(sport, UCR4);
 
 	if (sport->dma_is_enabled) {
 		ucr1 &= ~(UCR1_RXDMAEN | UCR1_ATDMAEN);
 	} else {
 		ucr1 &= ~UCR1_RRDYEN;
 		ucr2 &= ~UCR2_ATEN;
+		ucr4 &= ~UCR4_OREN;
 	}
 	imx_uart_writel(sport, ucr1, UCR1);
+	imx_uart_writel(sport, ucr4, UCR4);
 
 	ucr2 &= ~UCR2_RXEN;
 	imx_uart_writel(sport, ucr2, UCR2);
@@ -1544,7 +1547,7 @@ static void imx_uart_shutdown(struct uart_port *port)
 	imx_uart_writel(sport, ucr1, UCR1);
 
 	ucr4 = imx_uart_readl(sport, UCR4);
-	ucr4 &= ~(UCR4_OREN | UCR4_TCEN);
+	ucr4 &= ~UCR4_TCEN;
 	imx_uart_writel(sport, ucr4, UCR4);
 
 	spin_unlock_irqrestore(&sport->port.lock, flags);
-- 
2.34.1


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[PATCH AUTOSEL 5.16 090/217] arm64: dts: ti: j7200-main: Fix 'dtbs_check' serdes_ln_ctrl node

[Sasha Levin]

From: Kishon Vijay Abraham I <kishon@ti.com>

[ Upstream commit 4d3984906397581dc0ccb6a02bf16b6ff82c9192 ]

Fix 'dtbs_check' in serdes_ln_ctrl (serdes-ln-ctrl@4080) node by
changing the node name to mux-controller@4080.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211126084555.17797-2-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index d60ef4f7dd0b7..05a627ad6cdc4 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -32,7 +32,7 @@ scm_conf: scm-conf@100000 {
 		#size-cells = <1>;
 		ranges = <0x00 0x00 0x00100000 0x1c000>;
 
-		serdes_ln_ctrl: serdes-ln-ctrl@4080 {
+		serdes_ln_ctrl: mux-controller@4080 {
 			compatible = "mmio-mux";
 			#mux-control-cells = <1>;
 			mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
-- 
2.34.1


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[PATCH AUTOSEL 5.16 091/217] arm64: dts: ti: j721e-main: Fix 'dtbs_check' in serdes_ln_ctrl node

[Sasha Levin]

From: Kishon Vijay Abraham I <kishon@ti.com>

[ Upstream commit 3f92a5be6084b77f764a8bbb881ac0d12cb9e863 ]

Fix 'dtbs_check' in serdes_ln_ctrl (mux@4080) node by changing the node
name to mux-controller@4080.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211126084555.17797-3-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 08c8d1b47dcd9..e85c89eebfa31 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -42,7 +42,7 @@ scm_conf: scm-conf@100000 {
 		#size-cells = <1>;
 		ranges = <0x0 0x0 0x00100000 0x1c000>;
 
-		serdes_ln_ctrl: mux@4080 {
+		serdes_ln_ctrl: mux-controller@4080 {
 			compatible = "mmio-mux";
 			reg = <0x00004080 0x50>;
 			#mux-control-cells = <1>;
-- 
2.34.1


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[PATCH AUTOSEL 5.16 092/217] usb: uhci: add aspeed ast2600 uhci support

[Sasha Levin]

From: Neal Liu <neal_liu@aspeedtech.com>

[ Upstream commit 554abfe2eadec97d12c71d4a69da1518478f69eb ]

Enable ast2600 uhci quirks.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20211126100021.2331024-1-neal_liu@aspeedtech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/uhci-platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 70dbd95c3f063..be9e9db7cad10 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -113,7 +113,8 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
 				num_ports);
 		}
 		if (of_device_is_compatible(np, "aspeed,ast2400-uhci") ||
-		    of_device_is_compatible(np, "aspeed,ast2500-uhci")) {
+		    of_device_is_compatible(np, "aspeed,ast2500-uhci") ||
+		    of_device_is_compatible(np, "aspeed,ast2600-uhci")) {
 			uhci->is_aspeed = 1;
 			dev_info(&pdev->dev,
 				 "Enabled Aspeed implementation workarounds\n");
-- 
2.34.1


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[PATCH AUTOSEL 5.16 115/217] gpio: aspeed: Convert aspeed_gpio.lock to raw_spinlock

[Sasha Levin]

From: Iwona Winiarska <iwona.winiarska@intel.com>

[ Upstream commit 61a7904b6ace99b1bde0d0e867fa3097f5c8cee2 ]

The gpio-aspeed driver implements an irq_chip which need to be invoked
from hardirq context. Since spin_lock() can sleep with PREEMPT_RT, it is
no longer legal to invoke it while interrupts are disabled.
This also causes lockdep to complain about:
[    0.649797] [ BUG: Invalid wait context ]
because aspeed_gpio.lock (spin_lock_t) is taken under irq_desc.lock
(raw_spinlock_t).
Let's use of raw_spinlock_t instead of spinlock_t.

Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-aspeed.c | 52 +++++++++++++++++++-------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index 3c8f20c57695f..318a7d95a1a8b 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -53,7 +53,7 @@ struct aspeed_gpio_config {
 struct aspeed_gpio {
 	struct gpio_chip chip;
 	struct irq_chip irqc;
-	spinlock_t lock;
+	raw_spinlock_t lock;
 	void __iomem *base;
 	int irq;
 	const struct aspeed_gpio_config *config;
@@ -413,14 +413,14 @@ static void aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
 	unsigned long flags;
 	bool copro;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	__aspeed_gpio_set(gc, offset, val);
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static int aspeed_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
@@ -435,7 +435,7 @@ static int aspeed_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
 	if (!have_input(gpio, offset))
 		return -ENOTSUPP;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	reg = ioread32(addr);
 	reg &= ~GPIO_BIT(offset);
@@ -445,7 +445,7 @@ static int aspeed_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -463,7 +463,7 @@ static int aspeed_gpio_dir_out(struct gpio_chip *gc,
 	if (!have_output(gpio, offset))
 		return -ENOTSUPP;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	reg = ioread32(addr);
 	reg |= GPIO_BIT(offset);
@@ -474,7 +474,7 @@ static int aspeed_gpio_dir_out(struct gpio_chip *gc,
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -492,11 +492,11 @@ static int aspeed_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
 	if (!have_output(gpio, offset))
 		return GPIO_LINE_DIRECTION_IN;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	val = ioread32(bank_reg(gpio, bank, reg_dir)) & GPIO_BIT(offset);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return val ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
 }
@@ -539,14 +539,14 @@ static void aspeed_gpio_irq_ack(struct irq_data *d)
 
 	status_addr = bank_reg(gpio, bank, reg_irq_status);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	iowrite32(bit, status_addr);
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static void aspeed_gpio_irq_set_mask(struct irq_data *d, bool set)
@@ -565,7 +565,7 @@ static void aspeed_gpio_irq_set_mask(struct irq_data *d, bool set)
 
 	addr = bank_reg(gpio, bank, reg_irq_enable);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	reg = ioread32(addr);
@@ -577,7 +577,7 @@ static void aspeed_gpio_irq_set_mask(struct irq_data *d, bool set)
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static void aspeed_gpio_irq_mask(struct irq_data *d)
@@ -629,7 +629,7 @@ static int aspeed_gpio_set_type(struct irq_data *d, unsigned int type)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	addr = bank_reg(gpio, bank, reg_irq_type0);
@@ -649,7 +649,7 @@ static int aspeed_gpio_set_type(struct irq_data *d, unsigned int type)
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	irq_set_handler_locked(d, handler);
 
@@ -716,7 +716,7 @@ static int aspeed_gpio_reset_tolerance(struct gpio_chip *chip,
 
 	treg = bank_reg(gpio, to_bank(offset), reg_tolerance);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	val = readl(treg);
@@ -730,7 +730,7 @@ static int aspeed_gpio_reset_tolerance(struct gpio_chip *chip,
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -856,7 +856,7 @@ static int enable_debounce(struct gpio_chip *chip, unsigned int offset,
 		return rc;
 	}
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	if (timer_allocation_registered(gpio, offset)) {
 		rc = unregister_allocated_timer(gpio, offset);
@@ -916,7 +916,7 @@ static int enable_debounce(struct gpio_chip *chip, unsigned int offset,
 	configure_timer(gpio, offset, i);
 
 out:
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return rc;
 }
@@ -927,13 +927,13 @@ static int disable_debounce(struct gpio_chip *chip, unsigned int offset)
 	unsigned long flags;
 	int rc;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	rc = unregister_allocated_timer(gpio, offset);
 	if (!rc)
 		configure_timer(gpio, offset, 0);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return rc;
 }
@@ -1015,7 +1015,7 @@ int aspeed_gpio_copro_grab_gpio(struct gpio_desc *desc,
 		return -EINVAL;
 	bindex = offset >> 3;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	/* Sanity check, this shouldn't happen */
 	if (gpio->cf_copro_bankmap[bindex] == 0xff) {
@@ -1036,7 +1036,7 @@ int aspeed_gpio_copro_grab_gpio(struct gpio_desc *desc,
 	if (bit)
 		*bit = GPIO_OFFSET(offset);
  bail:
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(aspeed_gpio_copro_grab_gpio);
@@ -1060,7 +1060,7 @@ int aspeed_gpio_copro_release_gpio(struct gpio_desc *desc)
 		return -EINVAL;
 	bindex = offset >> 3;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	/* Sanity check, this shouldn't happen */
 	if (gpio->cf_copro_bankmap[bindex] == 0) {
@@ -1074,7 +1074,7 @@ int aspeed_gpio_copro_release_gpio(struct gpio_desc *desc)
 		aspeed_gpio_change_cmd_source(gpio, bank, bindex,
 					      GPIO_CMDSRC_ARM);
  bail:
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(aspeed_gpio_copro_release_gpio);
@@ -1148,7 +1148,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
 	if (IS_ERR(gpio->base))
 		return PTR_ERR(gpio->base);
 
-	spin_lock_init(&gpio->lock);
+	raw_spin_lock_init(&gpio->lock);
 
 	gpio_id = of_match_node(aspeed_gpio_of_table, pdev->dev.of_node);
 	if (!gpio_id)
-- 
2.34.1


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[PATCH AUTOSEL 5.16 116/217] gpio: aspeed-sgpio: Convert aspeed_sgpio.lock to raw_spinlock

[Sasha Levin]

From: Iwona Winiarska <iwona.winiarska@intel.com>

[ Upstream commit ab39d6988dd53f354130438d8afa5596a2440fed ]

The gpio-aspeed-sgpio driver implements an irq_chip which need to be
invoked from hardirq context. Since spin_lock() can sleep with
PREEMPT_RT, it is no longer legal to invoke it while interrupts are
disabled.
This also causes lockdep to complain about:
[   25.919465] [ BUG: Invalid wait context ]
because aspeed_sgpio.lock (spin_lock_t) is taken under irq_desc.lock
(raw_spinlock_t).
Let's use of raw_spinlock_t instead of spinlock_t.

Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-aspeed-sgpio.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/gpio/gpio-aspeed-sgpio.c b/drivers/gpio/gpio-aspeed-sgpio.c
index b3a9b8488f11d..454cefbeecf0e 100644
--- a/drivers/gpio/gpio-aspeed-sgpio.c
+++ b/drivers/gpio/gpio-aspeed-sgpio.c
@@ -31,7 +31,7 @@ struct aspeed_sgpio {
 	struct gpio_chip chip;
 	struct irq_chip intc;
 	struct clk *pclk;
-	spinlock_t lock;
+	raw_spinlock_t lock;
 	void __iomem *base;
 	int irq;
 };
@@ -173,12 +173,12 @@ static int aspeed_sgpio_get(struct gpio_chip *gc, unsigned int offset)
 	enum aspeed_sgpio_reg reg;
 	int rc = 0;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	reg = aspeed_sgpio_is_input(offset) ? reg_val : reg_rdata;
 	rc = !!(ioread32(bank_reg(gpio, bank, reg)) & GPIO_BIT(offset));
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return rc;
 }
@@ -215,11 +215,11 @@ static void aspeed_sgpio_set(struct gpio_chip *gc, unsigned int offset, int val)
 	struct aspeed_sgpio *gpio = gpiochip_get_data(gc);
 	unsigned long flags;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	sgpio_set_value(gc, offset, val);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static int aspeed_sgpio_dir_in(struct gpio_chip *gc, unsigned int offset)
@@ -236,9 +236,9 @@ static int aspeed_sgpio_dir_out(struct gpio_chip *gc, unsigned int offset, int v
 	/* No special action is required for setting the direction; we'll
 	 * error-out in sgpio_set_value if this isn't an output GPIO */
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	rc = sgpio_set_value(gc, offset, val);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return rc;
 }
@@ -277,11 +277,11 @@ static void aspeed_sgpio_irq_ack(struct irq_data *d)
 
 	status_addr = bank_reg(gpio, bank, reg_irq_status);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	iowrite32(bit, status_addr);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static void aspeed_sgpio_irq_set_mask(struct irq_data *d, bool set)
@@ -296,7 +296,7 @@ static void aspeed_sgpio_irq_set_mask(struct irq_data *d, bool set)
 	irqd_to_aspeed_sgpio_data(d, &gpio, &bank, &bit, &offset);
 	addr = bank_reg(gpio, bank, reg_irq_enable);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	reg = ioread32(addr);
 	if (set)
@@ -306,7 +306,7 @@ static void aspeed_sgpio_irq_set_mask(struct irq_data *d, bool set)
 
 	iowrite32(reg, addr);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static void aspeed_sgpio_irq_mask(struct irq_data *d)
@@ -355,7 +355,7 @@ static int aspeed_sgpio_set_type(struct irq_data *d, unsigned int type)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	addr = bank_reg(gpio, bank, reg_irq_type0);
 	reg = ioread32(addr);
@@ -372,7 +372,7 @@ static int aspeed_sgpio_set_type(struct irq_data *d, unsigned int type)
 	reg = (reg & ~bit) | type2;
 	iowrite32(reg, addr);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	irq_set_handler_locked(d, handler);
 
@@ -467,7 +467,7 @@ static int aspeed_sgpio_reset_tolerance(struct gpio_chip *chip,
 
 	reg = bank_reg(gpio, to_bank(offset), reg_tolerance);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	val = readl(reg);
 
@@ -478,7 +478,7 @@ static int aspeed_sgpio_reset_tolerance(struct gpio_chip *chip,
 
 	writel(val, reg);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -575,7 +575,7 @@ static int __init aspeed_sgpio_probe(struct platform_device *pdev)
 	iowrite32(FIELD_PREP(ASPEED_SGPIO_CLK_DIV_MASK, sgpio_clk_div) | gpio_cnt_regval |
 		  ASPEED_SGPIO_ENABLE, gpio->base + ASPEED_SGPIO_CTRL);
 
-	spin_lock_init(&gpio->lock);
+	raw_spin_lock_init(&gpio->lock);
 
 	gpio->chip.parent = &pdev->dev;
 	gpio->chip.ngpio = nr_gpios * 2;
-- 
2.34.1


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[PATCH AUTOSEL 5.16 119/217] arm64: dts: rockchip: Fix Bluetooth on ROCK Pi 4 boards

[Sasha Levin]

From: Jagan Teki <jagan@amarulasolutions.com>

[ Upstream commit f471b1b2db0819917c54099ab68349ad6a7e9e19 ]

This patch fixes the Bluetooth on ROCK Pi 4 boards.

ROCK Pi 4 boards has BCM4345C5 and now it is supported
on Mainline Linux, brcm,bcm43438-bt still working but
observed the BT Audio issues with latest test.

So, use the BCM4345C5 compatible and its associated
properties like clock-names as lpo and max-speed.

Attach vbat and vddio supply rails as well.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20211112142359.320798-1-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts | 7 +++++--
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts      | 7 +++++--
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts      | 7 +++++--
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts
index dfad13d2ab249..5bd2b8db3d51a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts
@@ -35,13 +35,16 @@ &uart0 {
 	status = "okay";
 
 	bluetooth {
-		compatible = "brcm,bcm43438-bt";
+		compatible = "brcm,bcm4345c5";
 		clocks = <&rk808 1>;
-		clock-names = "ext_clock";
+		clock-names = "lpo";
 		device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
 		host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
 		shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+		max-speed = <1500000>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
+		vbat-supply = <&vcc3v3_sys>;
+		vddio-supply = <&vcc_1v8>;
 	};
 };
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts
index 6c63e617063c9..cf48746a3ad81 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts
@@ -34,13 +34,16 @@ &uart0 {
 	status = "okay";
 
 	bluetooth {
-		compatible = "brcm,bcm43438-bt";
+		compatible = "brcm,bcm4345c5";
 		clocks = <&rk808 1>;
-		clock-names = "ext_clock";
+		clock-names = "lpo";
 		device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
 		host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
 		shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+		max-speed = <1500000>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
+		vbat-supply = <&vcc3v3_sys>;
+		vddio-supply = <&vcc_1v8>;
 	};
 };
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
index 99169bcd51c03..57ddf55ee6930 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
@@ -35,14 +35,17 @@ &uart0 {
 	status = "okay";
 
 	bluetooth {
-		compatible = "brcm,bcm43438-bt";
+		compatible = "brcm,bcm4345c5";
 		clocks = <&rk808 1>;
-		clock-names = "ext_clock";
+		clock-names = "lpo";
 		device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
 		host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
 		shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+		max-speed = <1500000>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
+		vbat-supply = <&vcc3v3_sys>;
+		vddio-supply = <&vcc_1v8>;
 	};
 };
 
-- 
2.34.1


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[PATCH AUTOSEL 5.16 135/217] media: rockchip: rkisp1: use device name for debugfs subdir name

[Sasha Levin]

From: Mikhail Rudenko <mike.rudenko@gmail.com>

[ Upstream commit c2611e479f5d9b05108270e1ab423955486b4457 ]

While testing Rockchip RK3399 with both ISPs enabled, a dmesg error
was observed:
```
[   15.559141] debugfs: Directory 'rkisp1' with parent '/' already present!
```

Fix it by using the device name for the debugfs subdirectory name
instead of the driver name, thus preventing name collision.

Link: https://lore.kernel.org/linux-media/20211010175457.438627-1-mike.rudenko@gmail.com
Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 50b166c49a03a..3f5cfa7eb9372 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -462,7 +462,7 @@ static void rkisp1_debug_init(struct rkisp1_device *rkisp1)
 {
 	struct rkisp1_debug *debug = &rkisp1->debug;
 
-	debug->debugfs_dir = debugfs_create_dir(RKISP1_DRIVER_NAME, NULL);
+	debug->debugfs_dir = debugfs_create_dir(dev_name(rkisp1->dev), NULL);
 	debugfs_create_ulong("data_loss", 0444, debug->debugfs_dir,
 			     &debug->data_loss);
 	debugfs_create_ulong("outform_size_err", 0444,  debug->debugfs_dir,
-- 
2.34.1


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[PATCH AUTOSEL 5.16 143/217] arm64: dts: ls1028a-qds: move rtc node to the correct i2c bus

[Sasha Levin]

From: Biwen Li <biwen.li@nxp.com>

[ Upstream commit cbe9d948eadfe352ad45495a7cc5bf20a1b29d90 ]

The i2c rtc is on i2c2 bus not i2c1 bus, so fix it in dts.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Li Yang <leoyang.lil@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
index 6e2a1da662fb4..4597848598df0 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
@@ -272,11 +272,6 @@ temperature-sensor@4c {
 				vcc-supply = <&sb_3v3>;
 			};
 
-			rtc@51 {
-				compatible = "nxp,pcf2129";
-				reg = <0x51>;
-			};
-
 			eeprom@56 {
 				compatible = "atmel,24c512";
 				reg = <0x56>;
@@ -318,6 +313,15 @@ mux: mux-controller {
 
 };
 
+&i2c1 {
+	status = "okay";
+
+	rtc@51 {
+		compatible = "nxp,pcf2129";
+		reg = <0x51>;
+	};
+};
+
 &enetc_port1 {
 	phy-handle = <&qds_phy1>;
 	phy-mode = "rgmii-id";
-- 
2.34.1


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[PATCH AUTOSEL 5.16 152/217] mt76: mt7615: fix possible deadlock while mt7615_register_ext_phy()

[Sasha Levin]

From: Peter Chiu <chui-hao.chiu@mediatek.com>

[ Upstream commit 8c55516de3f9b76b9d9444e7890682ec2efc809f ]

ieee80211_register_hw() is called with rtnl_lock held, and this could be
caused lockdep from a work item that's on a workqueue that is flushed
with the rtnl held.

Move mt7615_register_ext_phy() outside the init_work().

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
index a2465b49ecd0c..87b4aa52ee0f9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
@@ -28,8 +28,6 @@ static void mt7615_pci_init_work(struct work_struct *work)
 		return;
 
 	mt7615_init_work(dev);
-	if (dev->dbdc_support)
-		mt7615_register_ext_phy(dev);
 }
 
 static int mt7615_init_hardware(struct mt7615_dev *dev)
@@ -160,6 +158,12 @@ int mt7615_register_device(struct mt7615_dev *dev)
 	mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
 	mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
 
+	if (dev->dbdc_support) {
+		ret = mt7615_register_ext_phy(dev);
+		if (ret)
+			return ret;
+	}
+
 	return mt7615_init_debugfs(dev);
 }
 
-- 
2.34.1


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[PATCH AUTOSEL 5.16 153/217] mt76: mt7915: fix SMPS operation fail

[Sasha Levin]

From: Ryder Lee <ryder.lee@mediatek.com>

[ Upstream commit 8f05835425ce3f669e4b6d7c2c39a9aa22e1506c ]

TGn fails sending SM power save mode action frame to the AP to switch
from dynamic SMPS mode to static mode.

Reported-by: Fang Zhao <fang.zhao@mediatek.com>
Signed-off-by: Fang Zhao <fang.zhao@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/mediatek/mt76/mt7915/mcu.c   | 81 ++++++++++++-------
 .../net/wireless/mediatek/mt76/mt7915/mcu.h   |  8 ++
 2 files changed, 61 insertions(+), 28 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 852d5d97c70b1..8215b3d79bbdc 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -1752,33 +1752,6 @@ int mt7915_mcu_sta_update_hdr_trans(struct mt7915_dev *dev,
 				     true);
 }
 
-int mt7915_mcu_add_smps(struct mt7915_dev *dev, struct ieee80211_vif *vif,
-			struct ieee80211_sta *sta)
-{
-	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
-	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
-	struct wtbl_req_hdr *wtbl_hdr;
-	struct tlv *sta_wtbl;
-	struct sk_buff *skb;
-
-	skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta,
-				       MT7915_STA_UPDATE_MAX_SIZE);
-	if (IS_ERR(skb))
-		return PTR_ERR(skb);
-
-	sta_wtbl = mt7915_mcu_add_tlv(skb, STA_REC_WTBL, sizeof(struct tlv));
-
-	wtbl_hdr = mt7915_mcu_alloc_wtbl_req(dev, msta, WTBL_SET, sta_wtbl,
-					     &skb);
-	if (IS_ERR(wtbl_hdr))
-		return PTR_ERR(wtbl_hdr);
-
-	mt7915_mcu_wtbl_smps_tlv(skb, sta, sta_wtbl, wtbl_hdr);
-
-	return mt76_mcu_skb_send_msg(&dev->mt76, skb,
-				     MCU_EXT_CMD(STA_REC_UPDATE), true);
-}
-
 static inline bool
 mt7915_is_ebf_supported(struct mt7915_phy *phy, struct ieee80211_vif *vif,
 			struct ieee80211_sta *sta, bool bfee)
@@ -2049,6 +2022,21 @@ mt7915_mcu_sta_bfee_tlv(struct mt7915_dev *dev, struct sk_buff *skb,
 	bfee->fb_identity_matrix = (nrow == 1 && tx_ant == 2);
 }
 
+static enum mcu_mmps_mode
+mt7915_mcu_get_mmps_mode(enum ieee80211_smps_mode smps)
+{
+	switch (smps) {
+	case IEEE80211_SMPS_OFF:
+		return MCU_MMPS_DISABLE;
+	case IEEE80211_SMPS_STATIC:
+		return MCU_MMPS_STATIC;
+	case IEEE80211_SMPS_DYNAMIC:
+		return MCU_MMPS_DYNAMIC;
+	default:
+		return MCU_MMPS_DISABLE;
+	}
+}
+
 int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev,
 				   struct ieee80211_vif *vif,
 				   struct ieee80211_sta *sta,
@@ -2076,7 +2064,11 @@ int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev,
 	case RATE_PARAM_FIXED_MCS:
 	case RATE_PARAM_FIXED_GI:
 	case RATE_PARAM_FIXED_HE_LTF:
-		ra->phy = *phy;
+		if (phy)
+			ra->phy = *phy;
+		break;
+	case RATE_PARAM_MMPS_UPDATE:
+		ra->mmps_mode = mt7915_mcu_get_mmps_mode(sta->smps_mode);
 		break;
 	default:
 		break;
@@ -2087,6 +2079,39 @@ int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev,
 				     MCU_EXT_CMD(STA_REC_UPDATE), true);
 }
 
+int mt7915_mcu_add_smps(struct mt7915_dev *dev, struct ieee80211_vif *vif,
+			struct ieee80211_sta *sta)
+{
+	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
+	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
+	struct wtbl_req_hdr *wtbl_hdr;
+	struct tlv *sta_wtbl;
+	struct sk_buff *skb;
+	int ret;
+
+	skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta,
+				       MT7915_STA_UPDATE_MAX_SIZE);
+	if (IS_ERR(skb))
+		return PTR_ERR(skb);
+
+	sta_wtbl = mt7915_mcu_add_tlv(skb, STA_REC_WTBL, sizeof(struct tlv));
+
+	wtbl_hdr = mt7915_mcu_alloc_wtbl_req(dev, msta, WTBL_SET, sta_wtbl,
+					     &skb);
+	if (IS_ERR(wtbl_hdr))
+		return PTR_ERR(wtbl_hdr);
+
+	mt7915_mcu_wtbl_smps_tlv(skb, sta, sta_wtbl, wtbl_hdr);
+
+	ret = mt76_mcu_skb_send_msg(&dev->mt76, skb,
+				    MCU_EXT_CMD(STA_REC_UPDATE), true);
+	if (ret)
+		return ret;
+
+	return mt7915_mcu_set_fixed_rate_ctrl(dev, vif, sta, NULL,
+					      RATE_PARAM_MMPS_UPDATE);
+}
+
 static int
 mt7915_mcu_add_rate_ctrl_fixed(struct mt7915_dev *dev,
 			       struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index 1f5a64ba9b59d..628e90d0c394e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -365,6 +365,13 @@ enum {
 	MCU_PHY_STATE_OFDMLQ_CNINFO,
 };
 
+enum mcu_mmps_mode {
+	MCU_MMPS_STATIC,
+	MCU_MMPS_DYNAMIC,
+	MCU_MMPS_RSV,
+	MCU_MMPS_DISABLE,
+};
+
 #define STA_TYPE_STA			BIT(0)
 #define STA_TYPE_AP			BIT(1)
 #define STA_TYPE_ADHOC			BIT(2)
@@ -960,6 +967,7 @@ struct sta_rec_ra_fixed {
 
 enum {
 	RATE_PARAM_FIXED = 3,
+	RATE_PARAM_MMPS_UPDATE = 5,
 	RATE_PARAM_FIXED_HE_LTF = 7,
 	RATE_PARAM_FIXED_MCS,
 	RATE_PARAM_FIXED_GI = 11,
-- 
2.34.1


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[PATCH AUTOSEL 5.16 154/217] mt76: connac: fix a theoretical NULL pointer dereference in mt76_connac_get_phy_mode

[Sasha Levin]

From: Lorenzo Bianconi <lorenzo@kernel.org>

[ Upstream commit c9dbeac4988f6d4c4211b3747ec9c9c75ea87967 ]

Even if it is not a real bug since mt76_connac_get_phy_mode runs just
for mt7921 where only STA is supported, fix a theoretical NULL pointer
dereference if new added modes do not support HE

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 26b4b875dcc02..bcb596664b3e9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1179,7 +1179,7 @@ mt76_connac_get_phy_mode(struct mt76_phy *phy, struct ieee80211_vif *vif,
 		if (ht_cap->ht_supported)
 			mode |= PHY_MODE_GN;
 
-		if (he_cap->has_he)
+		if (he_cap && he_cap->has_he)
 			mode |= PHY_MODE_AX_24G;
 	} else if (band == NL80211_BAND_5GHZ || band == NL80211_BAND_6GHZ) {
 		mode |= PHY_MODE_A;
@@ -1190,7 +1190,7 @@ mt76_connac_get_phy_mode(struct mt76_phy *phy, struct ieee80211_vif *vif,
 		if (vht_cap->vht_supported)
 			mode |= PHY_MODE_AC;
 
-		if (he_cap->has_he) {
+		if (he_cap && he_cap->has_he) {
 			if (band == NL80211_BAND_6GHZ)
 				mode |= PHY_MODE_AX_6G;
 			else
-- 
2.34.1


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[PATCH AUTOSEL 5.16 155/217] mt76: do not pass the received frame with decryption error

[Sasha Levin]

From: Xing Song <xing.song@mediatek.com>

[ Upstream commit dd28dea52ad9376d2b243a8981726646e1f60b1a ]

MAC80211 doesn't care any decryption error in 802.3 path, so received
frame will be dropped if HW tell us that the cipher configuration is not
matched as well as the header has been translated to 802.3. This case only
appears when IEEE80211_FCTL_PROTECTED is 0 and cipher suit is not none in
the corresponding HW entry.

The received frame is only reported to monitor interface if HW decryption
block tell us there is ICV error or CCMP/BIP/WPI MIC error. Note in this
case the reported frame is decrypted 802.11 frame and the payload may be
malformed due to mismatched key.

Signed-off-by: Xing Song <xing.song@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7603/mac.c | 4 ++++
 drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 9 ++++++++-
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 9 ++++++++-
 drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 9 ++++++++-
 4 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
index fe03e31989bb1..a9ac61b9f854a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
@@ -525,6 +525,10 @@ mt7603_mac_fill_rx(struct mt7603_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_TKIP_MIC_ERR)
 		status->flag |= RX_FLAG_MMIC_ERROR;
 
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd2 & MT_RXD2_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	if (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2) != 0 &&
 	    !(rxd2 & (MT_RXD2_NORMAL_CLM | MT_RXD2_NORMAL_CM))) {
 		status->flag |= RX_FLAG_DECRYPTED;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 423f69015e3ec..c79abce543f3b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -286,9 +286,16 @@ static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
 		return -EINVAL;
 
+	hdr_trans = rxd1 & MT_RXD1_NORMAL_HDR_TRANS;
+	if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_CM))
+		return -EINVAL;
+
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd2 & MT_RXD2_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	unicast = (rxd1 & MT_RXD1_NORMAL_ADDR_TYPE) == MT_RXD1_NORMAL_U2M;
 	idx = FIELD_GET(MT_RXD2_NORMAL_WLAN_IDX, rxd2);
-	hdr_trans = rxd1 & MT_RXD1_NORMAL_HDR_TRANS;
 	status->wcid = mt7615_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 809dc18e5083c..38d66411444a1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -426,9 +426,16 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
 		return -EINVAL;
 
+	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
+	if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM))
+		return -EINVAL;
+
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
 	idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
-	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
 	status->wcid = mt7915_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index db3302b1576a0..27550385c35f9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -428,10 +428,17 @@ mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
 		return -EINVAL;
 
+	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
+	if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM))
+		return -EINVAL;
+
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3);
 	unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
 	idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
-	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
 	status->wcid = mt7921_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
-- 
2.34.1


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[PATCH AUTOSEL 5.16 156/217] mt76: mt7615: improve wmm index allocation

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 70fb028707c8871ef9e56b3ffa3d895e14956cc4 ]

Typically all AP interfaces on a PHY will share the same WMM settings, while
sta/mesh interfaces will usually inherit the settings from a remote device.
In order minimize the likelihood of conflicting WMM settings, make all AP
interfaces share one slot, and all non-AP interfaces another one.

This also fixes running multiple AP interfaces on MT7613, which only has 3
WMM slots.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/main.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 890d9b07e1563..b308d5ab5f9a6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -211,11 +211,9 @@ static int mt7615_add_interface(struct ieee80211_hw *hw,
 	mvif->mt76.omac_idx = idx;
 
 	mvif->mt76.band_idx = ext_phy;
-	if (mt7615_ext_phy(dev))
-		mvif->mt76.wmm_idx = ext_phy * (MT7615_MAX_WMM_SETS / 2) +
-				mvif->mt76.idx % (MT7615_MAX_WMM_SETS / 2);
-	else
-		mvif->mt76.wmm_idx = mvif->mt76.idx % MT7615_MAX_WMM_SETS;
+	mvif->mt76.wmm_idx = vif->type != NL80211_IFTYPE_AP;
+	if (ext_phy)
+		mvif->mt76.wmm_idx += 2;
 
 	dev->mt76.vif_mask |= BIT(mvif->mt76.idx);
 	dev->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
-- 
2.34.1


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[PATCH AUTOSEL 5.16 157/217] mt76: mt7921: fix network buffer leak by txs missing

[Sasha Levin]

From: Deren Wu <deren.wu@mediatek.com>

[ Upstream commit e0bf699ad8e52330d848144a9624a067ad588bd6 ]

TXS in mt7921 may be forwared to tx_done event. Should try to catch
TXS information in tx_done event as well.

Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/mediatek/mt76/mt7921/mac.c   |  2 +-
 .../net/wireless/mediatek/mt76/mt7921/mcu.c   | 14 ++++++++++
 .../net/wireless/mediatek/mt76/mt7921/mcu.h   | 27 +++++++++++++++++++
 .../wireless/mediatek/mt76/mt7921/mt7921.h    |  1 +
 4 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 27550385c35f9..4df272f93dd47 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -1072,7 +1072,7 @@ mt7921_mac_add_txs_skb(struct mt7921_dev *dev, struct mt76_wcid *wcid, int pid,
 	return !!skb;
 }
 
-static void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data)
+void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data)
 {
 	struct mt7921_sta *msta = NULL;
 	struct mt76_wcid *wcid;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 6ada1ebe7d68b..46ec9f713d772 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -418,6 +418,17 @@ mt7921_mcu_low_power_event(struct mt7921_dev *dev, struct sk_buff *skb)
 	trace_lp_event(dev, event->state);
 }
 
+static void
+mt7921_mcu_tx_done_event(struct mt7921_dev *dev, struct sk_buff *skb)
+{
+	struct mt7921_mcu_tx_done_event *event;
+
+	skb_pull(skb, sizeof(struct mt7921_mcu_rxd));
+	event = (struct mt7921_mcu_tx_done_event *)skb->data;
+
+	mt7921_mac_add_txs(dev, event->txs);
+}
+
 static void
 mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
 {
@@ -445,6 +456,9 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
 	case MCU_EVENT_LP_INFO:
 		mt7921_mcu_low_power_event(dev, skb);
 		break;
+	case MCU_EVENT_TX_DONE:
+		mt7921_mcu_tx_done_event(dev, skb);
+		break;
 	default:
 		break;
 	}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index edc0c73f8c01c..68cb0ce013dbd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -91,6 +91,33 @@ enum {
 	MCU_EVENT_COREDUMP = 0xf0,
 };
 
+struct mt7921_mcu_tx_done_event {
+	u8 pid;
+	u8 status;
+	__le16 seq;
+
+	u8 wlan_idx;
+	u8 tx_cnt;
+	__le16 tx_rate;
+
+	u8 flag;
+	u8 tid;
+	u8 rsp_rate;
+	u8 mcs;
+
+	u8 bw;
+	u8 tx_pwr;
+	u8 reason;
+	u8 rsv0[1];
+
+	__le32 delay;
+	__le32 timestamp;
+	__le32 applied_flag;
+	u8 txs[28];
+
+	u8 rsv1[32];
+} __packed;
+
 /* ext event table */
 enum {
 	MCU_EXT_EVENT_RATE_REPORT = 0x87,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index e9c7c3a195076..7a6c38fbb940a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -463,4 +463,5 @@ int mt7921s_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 			   struct mt76_tx_info *tx_info);
 void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e);
 bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update);
+void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data);
 #endif
-- 
2.34.1


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[PATCH AUTOSEL 5.16 184/217] mmc: mtk-sd: Use readl_poll_timeout instead of open-coded polling

[Sasha Levin]

From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

[ Upstream commit ffaea6ebfe9ce06ebb3a54811a47688f2b0893cd ]

Replace all instances of open-coded while loops for polling registers
with calls to readl_poll_timeout() and, while at it, also fix some
possible infinite loop instances.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20211216125748.179602-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/mtk-sd.c | 64 ++++++++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 25 deletions(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 632775217d35c..d5a9c269d4926 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -636,12 +636,11 @@ static void msdc_reset_hw(struct msdc_host *host)
 	u32 val;
 
 	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_RST);
-	while (readl(host->base + MSDC_CFG) & MSDC_CFG_RST)
-		cpu_relax();
+	readl_poll_timeout(host->base + MSDC_CFG, val, !(val & MSDC_CFG_RST), 0, 0);
 
 	sdr_set_bits(host->base + MSDC_FIFOCS, MSDC_FIFOCS_CLR);
-	while (readl(host->base + MSDC_FIFOCS) & MSDC_FIFOCS_CLR)
-		cpu_relax();
+	readl_poll_timeout(host->base + MSDC_FIFOCS, val,
+			   !(val & MSDC_FIFOCS_CLR), 0, 0);
 
 	val = readl(host->base + MSDC_INT);
 	writel(val, host->base + MSDC_INT);
@@ -814,8 +813,9 @@ static void msdc_gate_clock(struct msdc_host *host)
 	clk_disable_unprepare(host->h_clk);
 }
 
-static void msdc_ungate_clock(struct msdc_host *host)
+static int msdc_ungate_clock(struct msdc_host *host)
 {
+	u32 val;
 	int ret;
 
 	clk_prepare_enable(host->h_clk);
@@ -825,11 +825,11 @@ static void msdc_ungate_clock(struct msdc_host *host)
 	ret = clk_bulk_prepare_enable(MSDC_NR_CLOCKS, host->bulk_clks);
 	if (ret) {
 		dev_err(host->dev, "Cannot enable pclk/axi/ahb clock gates\n");
-		return;
+		return ret;
 	}
 
-	while (!(readl(host->base + MSDC_CFG) & MSDC_CFG_CKSTB))
-		cpu_relax();
+	return readl_poll_timeout(host->base + MSDC_CFG, val,
+				  (val & MSDC_CFG_CKSTB), 1, 20000);
 }
 
 static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
@@ -840,6 +840,7 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 	u32 div;
 	u32 sclk;
 	u32 tune_reg = host->dev_comp->pad_tune_reg;
+	u32 val;
 
 	if (!hz) {
 		dev_dbg(host->dev, "set mclk to 0\n");
@@ -920,8 +921,7 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 	else
 		clk_prepare_enable(clk_get_parent(host->src_clk));
 
-	while (!(readl(host->base + MSDC_CFG) & MSDC_CFG_CKSTB))
-		cpu_relax();
+	readl_poll_timeout(host->base + MSDC_CFG, val, (val & MSDC_CFG_CKSTB), 0, 0);
 	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_CKPDN);
 	mmc->actual_clock = sclk;
 	host->mclk = hz;
@@ -1231,13 +1231,13 @@ static bool msdc_cmd_done(struct msdc_host *host, int events,
 static inline bool msdc_cmd_is_ready(struct msdc_host *host,
 		struct mmc_request *mrq, struct mmc_command *cmd)
 {
-	/* The max busy time we can endure is 20ms */
-	unsigned long tmo = jiffies + msecs_to_jiffies(20);
+	u32 val;
+	int ret;
 
-	while ((readl(host->base + SDC_STS) & SDC_STS_CMDBUSY) &&
-			time_before(jiffies, tmo))
-		cpu_relax();
-	if (readl(host->base + SDC_STS) & SDC_STS_CMDBUSY) {
+	/* The max busy time we can endure is 20ms */
+	ret = readl_poll_timeout_atomic(host->base + SDC_STS, val,
+					!(val & SDC_STS_CMDBUSY), 1, 20000);
+	if (ret) {
 		dev_err(host->dev, "CMD bus busy detected\n");
 		host->error |= REQ_CMD_BUSY;
 		msdc_cmd_done(host, MSDC_INT_CMDTMO, mrq, cmd);
@@ -1245,12 +1245,10 @@ static inline bool msdc_cmd_is_ready(struct msdc_host *host,
 	}
 
 	if (mmc_resp_type(cmd) == MMC_RSP_R1B || cmd->data) {
-		tmo = jiffies + msecs_to_jiffies(20);
 		/* R1B or with data, should check SDCBUSY */
-		while ((readl(host->base + SDC_STS) & SDC_STS_SDCBUSY) &&
-				time_before(jiffies, tmo))
-			cpu_relax();
-		if (readl(host->base + SDC_STS) & SDC_STS_SDCBUSY) {
+		ret = readl_poll_timeout_atomic(host->base + SDC_STS, val,
+						!(val & SDC_STS_SDCBUSY), 1, 20000);
+		if (ret) {
 			dev_err(host->dev, "Controller busy detected\n");
 			host->error |= REQ_CMD_BUSY;
 			msdc_cmd_done(host, MSDC_INT_CMDTMO, mrq, cmd);
@@ -1376,6 +1374,8 @@ static bool msdc_data_xfer_done(struct msdc_host *host, u32 events,
 	    (MSDC_INT_XFER_COMPL | MSDC_INT_DATCRCERR | MSDC_INT_DATTMO
 	     | MSDC_INT_DMA_BDCSERR | MSDC_INT_DMA_GPDCSERR
 	     | MSDC_INT_DMA_PROTECT);
+	u32 val;
+	int ret;
 
 	spin_lock_irqsave(&host->lock, flags);
 	done = !host->data;
@@ -1392,8 +1392,14 @@ static bool msdc_data_xfer_done(struct msdc_host *host, u32 events,
 				readl(host->base + MSDC_DMA_CFG));
 		sdr_set_field(host->base + MSDC_DMA_CTRL, MSDC_DMA_CTRL_STOP,
 				1);
-		while (readl(host->base + MSDC_DMA_CFG) & MSDC_DMA_CFG_STS)
-			cpu_relax();
+
+		ret = readl_poll_timeout_atomic(host->base + MSDC_DMA_CFG, val,
+						!(val & MSDC_DMA_CFG_STS), 1, 20000);
+		if (ret) {
+			dev_dbg(host->dev, "DMA stop timed out\n");
+			return false;
+		}
+
 		sdr_clr_bits(host->base + MSDC_INTEN, data_ints_mask);
 		dev_dbg(host->dev, "DMA stop\n");
 
@@ -2674,7 +2680,11 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	spin_lock_init(&host->lock);
 
 	platform_set_drvdata(pdev, mmc);
-	msdc_ungate_clock(host);
+	ret = msdc_ungate_clock(host);
+	if (ret) {
+		dev_err(&pdev->dev, "Cannot ungate clocks!\n");
+		goto release_mem;
+	}
 	msdc_init_hw(host);
 
 	if (mmc->caps2 & MMC_CAP2_CQE) {
@@ -2833,8 +2843,12 @@ static int __maybe_unused msdc_runtime_resume(struct device *dev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct msdc_host *host = mmc_priv(mmc);
+	int ret;
+
+	ret = msdc_ungate_clock(host);
+	if (ret)
+		return ret;
 
-	msdc_ungate_clock(host);
 	msdc_restore_reg(host);
 	return 0;
 }
-- 
2.34.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH AUTOSEL 5.16 198/217] can: do not increase rx statistics when generating a CAN rx error message frame

[Sasha Levin]

From: Vincent Mailhol <mailhol.vincent@wanadoo.fr>

[ Upstream commit 676068db69b847f06fe054fca15bf6b107bd24da ]

The CAN error message frames (i.e. error skb) are an interface
specific to socket CAN. The payload of the CAN error message frames
does not correspond to any actual data sent on the wire. Only an error
flag and a delimiter are transmitted when an error occurs (c.f. ISO
11898-1 section 10.4.4.2 "Error flag").

For this reason, it makes no sense to increment the rx_packets and
rx_bytes fields of struct net_device_stats because no actual payload
were transmitted on the wire.

This patch fixes all the CAN drivers.

Link: https://lore.kernel.org/all/20211207121531.42941-2-mailhol.vincent@wanadoo.fr
CC: Marc Kleine-Budde <mkl@pengutronix.de>
CC: Nicolas Ferre <nicolas.ferre@microchip.com>
CC: Alexandre Belloni <alexandre.belloni@bootlin.com>
CC: Ludovic Desroches <ludovic.desroches@microchip.com>
CC: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
CC: Maxime Ripard <mripard@kernel.org>
CC: Chen-Yu Tsai <wens@csie.org>
CC: Jernej Skrabec <jernej.skrabec@gmail.com>
CC: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
CC: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
CC: Michal Simek <michal.simek@xilinx.com>
CC: Stephane Grosjean <s.grosjean@peak-system.com>
Tested-by: Jimmy Assarsson <extja@kvaser.com> # kvaser
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2
Tested-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/at91_can.c                        | 6 ------
 drivers/net/can/c_can/c_can_main.c                | 5 -----
 drivers/net/can/cc770/cc770.c                     | 3 ---
 drivers/net/can/dev/dev.c                         | 4 ----
 drivers/net/can/dev/rx-offload.c                  | 6 ++++--
 drivers/net/can/ifi_canfd/ifi_canfd.c             | 5 -----
 drivers/net/can/kvaser_pciefd.c                   | 5 -----
 drivers/net/can/m_can/m_can.c                     | 7 -------
 drivers/net/can/mscan/mscan.c                     | 9 +++++----
 drivers/net/can/pch_can.c                         | 3 ---
 drivers/net/can/peak_canfd/peak_canfd.c           | 4 ----
 drivers/net/can/rcar/rcar_can.c                   | 6 +-----
 drivers/net/can/rcar/rcar_canfd.c                 | 4 ----
 drivers/net/can/sja1000/sja1000.c                 | 2 --
 drivers/net/can/sun4i_can.c                       | 7 ++-----
 drivers/net/can/usb/ems_usb.c                     | 2 --
 drivers/net/can/usb/esd_usb2.c                    | 2 --
 drivers/net/can/usb/etas_es58x/es58x_core.c       | 7 -------
 drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c  | 2 --
 drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 8 --------
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c  | 4 ----
 drivers/net/can/usb/peak_usb/pcan_usb.c           | 2 --
 drivers/net/can/usb/peak_usb/pcan_usb_fd.c        | 3 ---
 drivers/net/can/usb/peak_usb/pcan_usb_pro.c       | 2 --
 drivers/net/can/usb/ucan.c                        | 6 ++++--
 drivers/net/can/usb/usb_8dev.c                    | 2 --
 drivers/net/can/xilinx_can.c                      | 9 +--------
 27 files changed, 17 insertions(+), 108 deletions(-)

diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index 3aea32c9b108f..3cd872cf9be66 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -553,8 +553,6 @@ static void at91_rx_overflow_err(struct net_device *dev)
 	cf->can_id |= CAN_ERR_CRTL;
 	cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_receive_skb(skb);
 }
 
@@ -779,8 +777,6 @@ static int at91_poll_err(struct net_device *dev, int quota, u32 reg_sr)
 
 	at91_poll_err_frame(dev, cf, reg_sr);
 
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += cf->len;
 	netif_receive_skb(skb);
 
 	return 1;
@@ -1037,8 +1033,6 @@ static void at91_irq_err(struct net_device *dev)
 
 	at91_irq_err_state(dev, cf, new_state);
 
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += cf->len;
 	netif_rx(skb);
 
 	priv->can.state = new_state;
diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c
index 52671d1ea17d5..670754a129846 100644
--- a/drivers/net/can/c_can/c_can_main.c
+++ b/drivers/net/can/c_can/c_can_main.c
@@ -920,7 +920,6 @@ static int c_can_handle_state_change(struct net_device *dev,
 	unsigned int reg_err_counter;
 	unsigned int rx_err_passive;
 	struct c_can_priv *priv = netdev_priv(dev);
-	struct net_device_stats *stats = &dev->stats;
 	struct can_frame *cf;
 	struct sk_buff *skb;
 	struct can_berr_counter bec;
@@ -996,8 +995,6 @@ static int c_can_handle_state_change(struct net_device *dev,
 		break;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_receive_skb(skb);
 
 	return 1;
@@ -1064,8 +1061,6 @@ static int c_can_handle_bus_err(struct net_device *dev,
 		break;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_receive_skb(skb);
 	return 1;
 }
diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c
index f8a130f594e2e..a5fd8ccedec21 100644
--- a/drivers/net/can/cc770/cc770.c
+++ b/drivers/net/can/cc770/cc770.c
@@ -499,7 +499,6 @@ static void cc770_rx(struct net_device *dev, unsigned int mo, u8 ctrl1)
 static int cc770_err(struct net_device *dev, u8 status)
 {
 	struct cc770_priv *priv = netdev_priv(dev);
-	struct net_device_stats *stats = &dev->stats;
 	struct can_frame *cf;
 	struct sk_buff *skb;
 	u8 lec;
@@ -571,8 +570,6 @@ static int cc770_err(struct net_device *dev, u8 status)
 	}
 
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 
 	return 0;
diff --git a/drivers/net/can/dev/dev.c b/drivers/net/can/dev/dev.c
index e3d840b81357d..4845ae6456e19 100644
--- a/drivers/net/can/dev/dev.c
+++ b/drivers/net/can/dev/dev.c
@@ -136,7 +136,6 @@ EXPORT_SYMBOL_GPL(can_change_state);
 static void can_restart(struct net_device *dev)
 {
 	struct can_priv *priv = netdev_priv(dev);
-	struct net_device_stats *stats = &dev->stats;
 	struct sk_buff *skb;
 	struct can_frame *cf;
 	int err;
@@ -155,9 +154,6 @@ static void can_restart(struct net_device *dev)
 
 	cf->can_id |= CAN_ERR_RESTARTED;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
-
 	netif_rx_ni(skb);
 
 restart:
diff --git a/drivers/net/can/dev/rx-offload.c b/drivers/net/can/dev/rx-offload.c
index 37b0cc65237b7..7dbf46b9ca5dd 100644
--- a/drivers/net/can/dev/rx-offload.c
+++ b/drivers/net/can/dev/rx-offload.c
@@ -54,8 +54,10 @@ static int can_rx_offload_napi_poll(struct napi_struct *napi, int quota)
 		struct can_frame *cf = (struct can_frame *)skb->data;
 
 		work_done++;
-		stats->rx_packets++;
-		stats->rx_bytes += cf->len;
+		if (!(cf->can_id & CAN_ERR_FLAG)) {
+			stats->rx_packets++;
+			stats->rx_bytes += cf->len;
+		}
 		netif_receive_skb(skb);
 	}
 
diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c
index 5bb957a26bc69..e8318e984bf2f 100644
--- a/drivers/net/can/ifi_canfd/ifi_canfd.c
+++ b/drivers/net/can/ifi_canfd/ifi_canfd.c
@@ -430,8 +430,6 @@ static int ifi_canfd_handle_lec_err(struct net_device *ndev)
 	       priv->base + IFI_CANFD_INTERRUPT);
 	writel(IFI_CANFD_ERROR_CTR_ER_ENABLE, priv->base + IFI_CANFD_ERROR_CTR);
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_receive_skb(skb);
 
 	return 1;
@@ -456,7 +454,6 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev,
 					 enum can_state new_state)
 {
 	struct ifi_canfd_priv *priv = netdev_priv(ndev);
-	struct net_device_stats *stats = &ndev->stats;
 	struct can_frame *cf;
 	struct sk_buff *skb;
 	struct can_berr_counter bec;
@@ -522,8 +519,6 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev,
 		break;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_receive_skb(skb);
 
 	return 1;
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index eb74cdf26b88c..ab672c92ab078 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -1310,9 +1310,6 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can,
 	cf->data[6] = bec.txerr;
 	cf->data[7] = bec.rxerr;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
-
 	netif_rx(skb);
 	return 0;
 }
@@ -1510,8 +1507,6 @@ static void kvaser_pciefd_handle_nack_packet(struct kvaser_pciefd_can *can,
 
 	if (skb) {
 		cf->can_id |= CAN_ERR_BUSERROR;
-		stats->rx_bytes += cf->len;
-		stats->rx_packets++;
 		netif_rx(skb);
 	} else {
 		stats->rx_dropped++;
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index c2a8421e7845c..30d94cb43113d 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -647,9 +647,6 @@ static int m_can_handle_lec_err(struct net_device *dev,
 		break;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
-
 	if (cdev->is_peripheral)
 		timestamp = m_can_get_timestamp(cdev);
 
@@ -706,7 +703,6 @@ static int m_can_handle_state_change(struct net_device *dev,
 				     enum can_state new_state)
 {
 	struct m_can_classdev *cdev = netdev_priv(dev);
-	struct net_device_stats *stats = &dev->stats;
 	struct can_frame *cf;
 	struct sk_buff *skb;
 	struct can_berr_counter bec;
@@ -771,9 +767,6 @@ static int m_can_handle_state_change(struct net_device *dev,
 		break;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
-
 	if (cdev->is_peripheral)
 		timestamp = m_can_get_timestamp(cdev);
 
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index fa32e418eb296..9e1cce0260da6 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -401,13 +401,14 @@ static int mscan_rx_poll(struct napi_struct *napi, int quota)
 			continue;
 		}
 
-		if (canrflg & MSCAN_RXF)
+		if (canrflg & MSCAN_RXF) {
 			mscan_get_rx_frame(dev, frame);
-		else if (canrflg & MSCAN_ERR_IF)
+			stats->rx_packets++;
+			stats->rx_bytes += frame->len;
+		} else if (canrflg & MSCAN_ERR_IF) {
 			mscan_get_err_frame(dev, frame, canrflg);
+		}
 
-		stats->rx_packets++;
-		stats->rx_bytes += frame->len;
 		work_done++;
 		netif_receive_skb(skb);
 	}
diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c
index 964c8a09226a9..6b45840db1f9b 100644
--- a/drivers/net/can/pch_can.c
+++ b/drivers/net/can/pch_can.c
@@ -561,9 +561,6 @@ static void pch_can_error(struct net_device *ndev, u32 status)
 
 	priv->can.state = state;
 	netif_receive_skb(skb);
-
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 }
 
 static irqreturn_t pch_can_interrupt(int irq, void *dev_id)
diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c
index d08718e98e110..d5b8bc6d29804 100644
--- a/drivers/net/can/peak_canfd/peak_canfd.c
+++ b/drivers/net/can/peak_canfd/peak_canfd.c
@@ -409,8 +409,6 @@ static int pucan_handle_status(struct peak_canfd_priv *priv,
 		return -ENOMEM;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	pucan_netif_rx(skb, msg->ts_low, msg->ts_high);
 
 	return 0;
@@ -438,8 +436,6 @@ static int pucan_handle_cache_critical(struct peak_canfd_priv *priv)
 	cf->data[6] = priv->bec.txerr;
 	cf->data[7] = priv->bec.rxerr;
 
-	stats->rx_bytes += cf->len;
-	stats->rx_packets++;
 	netif_rx(skb);
 
 	return 0;
diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index 8999ec9455ec2..f408ed9a6ccd1 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -223,7 +223,6 @@ static void tx_failure_cleanup(struct net_device *ndev)
 static void rcar_can_error(struct net_device *ndev)
 {
 	struct rcar_can_priv *priv = netdev_priv(ndev);
-	struct net_device_stats *stats = &ndev->stats;
 	struct can_frame *cf;
 	struct sk_buff *skb;
 	u8 eifr, txerr = 0, rxerr = 0;
@@ -362,11 +361,8 @@ static void rcar_can_error(struct net_device *ndev)
 		}
 	}
 
-	if (skb) {
-		stats->rx_packets++;
-		stats->rx_bytes += cf->len;
+	if (skb)
 		netif_rx(skb);
-	}
 }
 
 static void rcar_can_tx_done(struct net_device *ndev)
diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index ff9d0f5ae0dd2..db9d62874e151 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1033,8 +1033,6 @@ static void rcar_canfd_error(struct net_device *ndev, u32 cerfl,
 	/* Clear channel error interrupts that are handled */
 	rcar_canfd_write(priv->base, RCANFD_CERFL(ch),
 			 RCANFD_CERFL_ERR(~cerfl));
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 }
 
@@ -1174,8 +1172,6 @@ static void rcar_canfd_state_change(struct net_device *ndev,
 		rx_state = txerr <= rxerr ? state : 0;
 
 		can_change_state(ndev, cf, tx_state, rx_state);
-		stats->rx_packets++;
-		stats->rx_bytes += cf->len;
 		netif_rx(skb);
 	}
 }
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 3fad546467461..a65546ca94610 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -487,8 +487,6 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status)
 			can_bus_off(dev);
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 
 	return 0;
diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c
index 54aa7c25c4de1..599174098883d 100644
--- a/drivers/net/can/sun4i_can.c
+++ b/drivers/net/can/sun4i_can.c
@@ -622,13 +622,10 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status)
 			can_bus_off(dev);
 	}
 
-	if (likely(skb)) {
-		stats->rx_packets++;
-		stats->rx_bytes += cf->len;
+	if (likely(skb))
 		netif_rx(skb);
-	} else {
+	else
 		return -ENOMEM;
-	}
 
 	return 0;
 }
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 2b5302e724353..7cf65936d02e5 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -397,8 +397,6 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg)
 		stats->rx_errors++;
 	}
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 }
 
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index c6068a251fbed..5f6915a27b3d9 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -293,8 +293,6 @@ static void esd_usb2_rx_event(struct esd_usb2_net_priv *priv,
 		priv->bec.txerr = txerr;
 		priv->bec.rxerr = rxerr;
 
-		stats->rx_packets++;
-		stats->rx_bytes += cf->len;
 		netif_rx(skb);
 	}
 }
diff --git a/drivers/net/can/usb/etas_es58x/es58x_core.c b/drivers/net/can/usb/etas_es58x/es58x_core.c
index 24627ab146261..fb07c33ba0c3c 100644
--- a/drivers/net/can/usb/etas_es58x/es58x_core.c
+++ b/drivers/net/can/usb/etas_es58x/es58x_core.c
@@ -849,13 +849,6 @@ int es58x_rx_err_msg(struct net_device *netdev, enum es58x_err error,
 		break;
 	}
 
-	/* driver/net/can/dev.c:can_restart() takes in account error
-	 * messages in the RX stats. Doing the same here for
-	 * consistency.
-	 */
-	netdev->stats.rx_packets++;
-	netdev->stats.rx_bytes += CAN_ERR_DLC;
-
 	if (cf) {
 		if (cf->data[1])
 			cf->can_id |= CAN_ERR_CRTL;
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
index 0cc0fc866a2a9..3e682ef43f8ef 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
@@ -279,8 +279,6 @@ int kvaser_usb_can_rx_over_error(struct net_device *netdev)
 	cf->can_id |= CAN_ERR_CRTL;
 	cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 
 	return 0;
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c
index dcee8dc828ecc..3398da323126c 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c
@@ -869,7 +869,6 @@ static void kvaser_usb_hydra_update_state(struct kvaser_usb_net_priv *priv,
 	struct net_device *netdev = priv->netdev;
 	struct can_frame *cf;
 	struct sk_buff *skb;
-	struct net_device_stats *stats;
 	enum can_state new_state, old_state;
 
 	old_state = priv->can.state;
@@ -919,9 +918,6 @@ static void kvaser_usb_hydra_update_state(struct kvaser_usb_net_priv *priv,
 	cf->data[6] = bec->txerr;
 	cf->data[7] = bec->rxerr;
 
-	stats = &netdev->stats;
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 }
 
@@ -1074,8 +1070,6 @@ kvaser_usb_hydra_error_frame(struct kvaser_usb_net_priv *priv,
 	cf->data[6] = bec.txerr;
 	cf->data[7] = bec.rxerr;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 
 	priv->bec.txerr = bec.txerr;
@@ -1109,8 +1103,6 @@ static void kvaser_usb_hydra_one_shot_fail(struct kvaser_usb_net_priv *priv,
 	}
 
 	stats->tx_errors++;
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 }
 
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
index f7af1bf5ab46d..5434b7386a51e 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
@@ -641,8 +641,6 @@ static void kvaser_usb_leaf_tx_acknowledge(const struct kvaser_usb *dev,
 		if (skb) {
 			cf->can_id |= CAN_ERR_RESTARTED;
 
-			stats->rx_packets++;
-			stats->rx_bytes += cf->len;
 			netif_rx(skb);
 		} else {
 			netdev_err(priv->netdev,
@@ -843,8 +841,6 @@ static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev,
 	cf->data[6] = es->txerr;
 	cf->data[7] = es->rxerr;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 }
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 8762187527669..21b06a7385959 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -520,8 +520,6 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
 				     &hwts->hwtstamp);
 	}
 
-	mc->netdev->stats.rx_packets++;
-	mc->netdev->stats.rx_bytes += cf->len;
 	netif_rx(skb);
 
 	return 0;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index 6bd12549f1014..185f5a98d2177 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -577,9 +577,6 @@ static int pcan_usb_fd_decode_status(struct pcan_usb_fd_if *usb_if,
 	if (!skb)
 		return -ENOMEM;
 
-	netdev->stats.rx_packets++;
-	netdev->stats.rx_bytes += cf->len;
-
 	peak_usb_netif_rx_64(skb, le32_to_cpu(sm->ts_low),
 			     le32_to_cpu(sm->ts_high));
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index 858ab22708fcd..f6d19879bf404 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -660,8 +660,6 @@ static int pcan_usb_pro_handle_error(struct pcan_usb_pro_interface *usb_if,
 
 	hwts = skb_hwtstamps(skb);
 	peak_usb_get_ts_time(&usb_if->time_ref, le32_to_cpu(er->ts32), &hwts->hwtstamp);
-	netdev->stats.rx_packets++;
-	netdev->stats.rx_bytes += can_frame->len;
 	netif_rx(skb);
 
 	return 0;
diff --git a/drivers/net/can/usb/ucan.c b/drivers/net/can/usb/ucan.c
index 1679cbe45ded2..d582c39fc8d0e 100644
--- a/drivers/net/can/usb/ucan.c
+++ b/drivers/net/can/usb/ucan.c
@@ -621,8 +621,10 @@ static void ucan_rx_can_msg(struct ucan_priv *up, struct ucan_message_in *m)
 		memcpy(cf->data, m->msg.can_msg.data, cf->len);
 
 	/* don't count error frames as real packets */
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
+	if (!(cf->can_id & CAN_ERR_FLAG)) {
+		stats->rx_packets++;
+		stats->rx_bytes += cf->len;
+	}
 
 	/* pass it to Linux */
 	netif_rx(skb);
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index d1b83bd1b3cb9..040324362b260 100644
--- a/drivers/net/can/usb/usb_8dev.c
+++ b/drivers/net/can/usb/usb_8dev.c
@@ -449,8 +449,6 @@ static void usb_8dev_rx_err_msg(struct usb_8dev_priv *priv,
 	priv->bec.txerr = txerr;
 	priv->bec.rxerr = rxerr;
 
-	stats->rx_packets++;
-	stats->rx_bytes += cf->len;
 	netif_rx(skb);
 }
 
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index e2b15d29d15eb..275e240ab293f 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -965,13 +965,8 @@ static void xcan_update_error_state_after_rxtx(struct net_device *ndev)
 
 		xcan_set_error_state(ndev, new_state, skb ? cf : NULL);
 
-		if (skb) {
-			struct net_device_stats *stats = &ndev->stats;
-
-			stats->rx_packets++;
-			stats->rx_bytes += cf->len;
+		if (skb)
 			netif_rx(skb);
-		}
 	}
 }
 
@@ -1095,8 +1090,6 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr)
 		if (skb) {
 			skb_cf->can_id |= cf.can_id;
 			memcpy(skb_cf->data, cf.data, CAN_ERR_DLC);
-			stats->rx_packets++;
-			stats->rx_bytes += CAN_ERR_DLC;
 			netif_rx(skb);
 		}
 	}
-- 
2.34.1


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[PATCH AUTOSEL 5.16 202/217] net: gemini: allow any RGMII interface mode

[Sasha Levin]

From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>

[ Upstream commit 4e4f325a0a55907b14f579e6b1a38c53755e3de2 ]

The four RGMII interface modes take care of the required RGMII delay
configuration at the PHY and should not be limited by the network MAC
driver. Sadly, gemini was only permitting RGMII mode with no delays,
which would require the required delay to be inserted via PCB tracking
or by the MAC.

However, there are designs that require the PHY to add the delay, which
is impossible without Gemini permitting the other three PHY interface
modes. Fix the driver to allow these.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Link: https://lore.kernel.org/r/E1n4mpT-002PLd-Ha@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cortina/gemini.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index 941f175fb911e..0ff40a9b06cec 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -305,21 +305,21 @@ static void gmac_speed_set(struct net_device *netdev)
 	switch (phydev->speed) {
 	case 1000:
 		status.bits.speed = GMAC_SPEED_1000;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_1000;
 		netdev_dbg(netdev, "connect %s to RGMII @ 1Gbit\n",
 			   phydev_name(phydev));
 		break;
 	case 100:
 		status.bits.speed = GMAC_SPEED_100;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
 		netdev_dbg(netdev, "connect %s to RGMII @ 100 Mbit\n",
 			   phydev_name(phydev));
 		break;
 	case 10:
 		status.bits.speed = GMAC_SPEED_10;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
 		netdev_dbg(netdev, "connect %s to RGMII @ 10 Mbit\n",
 			   phydev_name(phydev));
@@ -389,6 +389,9 @@ static int gmac_setup_phy(struct net_device *netdev)
 		status.bits.mii_rmii = GMAC_PHY_GMII;
 		break;
 	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
 		netdev_dbg(netdev,
 			   "RGMII: set GMAC0 and GMAC1 to MII/RGMII mode\n");
 		status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
-- 
2.34.1


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