[PATCH AUTOSEL 4.4 19/68] gpiolib: Fix return value of gpio_to

linux-gpio.vger.kernel.org archive mirror
 help / color / mirror / Atom feed

* [PATCH AUTOSEL 4.4 19/68] gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
       [not found] <20191122061301.4947-1-sashal@kernel.org>
@ 2019-11-22  6:12 ` Sasha Levin
  2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 24/68] pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration Sasha Levin
  2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 25/68] pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10 Sasha Levin
  2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2019-11-22  6:12 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Krzysztof Kozlowski, Linus Walleij, Sasha Levin, linux-gpio

From: Krzysztof Kozlowski <krzk@kernel.org>

[ Upstream commit c5510b8dafce5f3f5a039c9b262ebcae0092c462 ]

If CONFIG_GPOILIB is not set, the stub of gpio_to_desc() should return
the same type of error as regular version: NULL.  All the callers
compare the return value of gpio_to_desc() against NULL, so returned
ERR_PTR would be treated as non-error case leading to dereferencing of
error value.

Fixes: 79a9becda894 ("gpiolib: export descriptor-based GPIO interface")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/gpio/consumer.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index fb0fde686cb1f..4a9838feb0866 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -398,7 +398,7 @@ static inline int gpiod_to_irq(const struct gpio_desc *desc)
 
 static inline struct gpio_desc *gpio_to_desc(unsigned gpio)
 {
-	return ERR_PTR(-EINVAL);
+	return NULL;
 }
 
 static inline int desc_to_gpio(const struct gpio_desc *desc)
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [PATCH AUTOSEL 4.4 24/68] pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration
       [not found] <20191122061301.4947-1-sashal@kernel.org>
  2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 19/68] gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB Sasha Levin
@ 2019-11-22  6:12 ` Sasha Levin
  2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 25/68] pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10 Sasha Levin
  2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2019-11-22  6:12 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Geert Uytterhoeven, Simon Horman, Sasha Levin, linux-renesas-soc,
	linux-gpio

From: Geert Uytterhoeven <geert+renesas@glider.be>

[ Upstream commit 1b99d0c80bbe1810572c2cb77b90f67886adfa8d ]

The Port F Control Register 3 (PFCR3) contains only a single field.
However, counting from left to right, it is the fourth field, not the
first field.
Insert the missing dummy configuration values (3 fields of 16 values) to
fix this.

The descriptor for the Port F Control Register 0 (PFCR0) lacks the
description for the 4th field (PF0 Mode, PF0MD[2:0]).
Add the missing configuration values to fix this.

Fixes: a8d42fc4217b1ea1 ("sh-pfc: Add sh7264 pinmux support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/sh-pfc/pfc-sh7264.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/sh-pfc/pfc-sh7264.c b/drivers/pinctrl/sh-pfc/pfc-sh7264.c
index 8070765311dbf..e1c34e19222ee 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh7264.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh7264.c
@@ -1716,6 +1716,9 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 	},
 
 	{ PINMUX_CFG_REG("PFCR3", 0xfffe38a8, 16, 4) {
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 		PF12MD_000, PF12MD_001, 0, PF12MD_011,
 		PF12MD_100, PF12MD_101, 0, 0,
 		0, 0, 0, 0, 0, 0, 0, 0 }
@@ -1759,8 +1762,10 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 		0, 0, 0, 0, 0, 0, 0, 0,
 		PF1MD_000, PF1MD_001, PF1MD_010, PF1MD_011,
 		PF1MD_100, PF1MD_101, 0, 0,
-		0, 0, 0, 0, 0, 0, 0, 0
-	 }
+		0, 0, 0, 0, 0, 0, 0, 0,
+		PF0MD_000, PF0MD_001, PF0MD_010, PF0MD_011,
+		PF0MD_100, PF0MD_101, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0 }
 	},
 
 	{ PINMUX_CFG_REG("PFIOR0", 0xfffe38b2, 16, 1) {
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [PATCH AUTOSEL 4.4 25/68] pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10
       [not found] <20191122061301.4947-1-sashal@kernel.org>
  2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 19/68] gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB Sasha Levin
  2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 24/68] pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration Sasha Levin
@ 2019-11-22  6:12 ` Sasha Levin
  2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2019-11-22  6:12 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Geert Uytterhoeven, Simon Horman, Sasha Levin, linux-renesas-soc,
	linux-gpio

From: Geert Uytterhoeven <geert+renesas@glider.be>

[ Upstream commit 054f2400f706327f96770219c3065b5131f8f154 ]

Some values in the Peripheral Function Select Register 10 descriptor are
shifted by one position, which may cause a peripheral function to be
programmed incorrectly.

Fixing this makes all HSCIF0 pins use Function 4 (value 3), like was
already the case for the HSCK0 pin in field IP10[5:3].

Fixes: ac1ebc2190f575fc ("sh-pfc: Add sh7734 pinmux support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/sh-pfc/pfc-sh7734.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/sh-pfc/pfc-sh7734.c b/drivers/pinctrl/sh-pfc/pfc-sh7734.c
index 9842bb1067969..c691b2e343746 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh7734.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh7734.c
@@ -2218,22 +2218,22 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 	    /* IP10_22 [1] */
 		FN_CAN_CLK_A, FN_RX4_D,
 	    /* IP10_21_19 [3] */
-		FN_AUDIO_CLKOUT, FN_TX1_E, FN_HRTS0_C, FN_FSE_B,
-		FN_LCD_M_DISP_B, 0, 0, 0,
+		FN_AUDIO_CLKOUT, FN_TX1_E, 0, FN_HRTS0_C, FN_FSE_B,
+		FN_LCD_M_DISP_B, 0, 0,
 	    /* IP10_18_16 [3] */
-		FN_AUDIO_CLKC, FN_SCK1_E, FN_HCTS0_C, FN_FRB_B,
-		FN_LCD_VEPWC_B, 0, 0, 0,
+		FN_AUDIO_CLKC, FN_SCK1_E, 0, FN_HCTS0_C, FN_FRB_B,
+		FN_LCD_VEPWC_B, 0, 0,
 	    /* IP10_15 [1] */
 		FN_AUDIO_CLKB_A, FN_LCD_CLK_B,
 	    /* IP10_14_12 [3] */
 		FN_AUDIO_CLKA_A, FN_VI1_CLK_B, FN_SCK1_D, FN_IECLK_B,
 		FN_LCD_FLM_B, 0, 0, 0,
 	    /* IP10_11_9 [3] */
-		FN_SSI_SDATA3, FN_VI1_7_B, FN_HTX0_C, FN_FWE_B,
-		FN_LCD_CL2_B, 0, 0, 0,
+		FN_SSI_SDATA3, FN_VI1_7_B, 0, FN_HTX0_C, FN_FWE_B,
+		FN_LCD_CL2_B, 0, 0,
 	    /* IP10_8_6 [3] */
-		FN_SSI_SDATA2, FN_VI1_6_B, FN_HRX0_C, FN_FRE_B,
-		FN_LCD_CL1_B, 0, 0, 0,
+		FN_SSI_SDATA2, FN_VI1_6_B, 0, FN_HRX0_C, FN_FRE_B,
+		FN_LCD_CL1_B, 0, 0,
 	    /* IP10_5_3 [3] */
 		FN_SSI_WS23, FN_VI1_5_B, FN_TX1_D, FN_HSCK0_C, FN_FALE_B,
 		FN_LCD_DON_B, 0, 0, 0,
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-11-22  6:17 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <20191122061301.4947-1-sashal@kernel.org>
2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 19/68] gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB Sasha Levin
2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 24/68] pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration Sasha Levin
2019-11-22  6:12 ` [PATCH AUTOSEL 4.4 25/68] pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10 Sasha Levin

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).