* [PATCH v7 0/3] Add support for Allwinner PWM on D1/T113s/R329 SoCs
@ 2024-01-25 7:19 Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller Aleksandr Shubin
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Aleksandr Shubin @ 2024-01-25 7:19 UTC (permalink / raw)
To: linux-kernel
Cc: Aleksandr Shubin, Uwe Kleine-König, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Chen-Yu Tsai, Jernej Skrabec,
Samuel Holland, Paul Walmsley, Palmer Dabbelt, Albert Ou,
Philipp Zabel, Andre Przywara, Marc Kleine-Budde, Maksim Kiselev,
Cristian Ciocaltea, John Watts, Cheo Fusi, linux-pwm, devicetree,
linux-arm-kernel, linux-sunxi, linux-riscv
Hi,
This series adds support for PWM controller on new
Allwinner's SoCs, such as D1, T113s and R329. The implemented driver
provides basic functionality for control PWM channels.
v2:
- fix dt-bindings
- fix a remark in the driver
v3:
- fix dt-bindings
- fix sunxi-d1s-t113.dtsi
v4:
- fix a remark in the driver
v5:
- dropped unused varibale in the driver
- fix dt-bindings
v6:
- add apb0 clock
v7:
- fix a remark in the driver
- add maintainer
Aleksandr Shubin (3):
dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM
controller
pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
riscv: dts: allwinner: d1: Add pwm node
.../bindings/pwm/allwinner,sun20i-pwm.yaml | 88 ++++
.../boot/dts/allwinner/sunxi-d1s-t113.dtsi | 12 +
drivers/pwm/Kconfig | 10 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-sun20i.c | 380 ++++++++++++++++++
5 files changed, 491 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
create mode 100644 drivers/pwm/pwm-sun20i.c
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v7 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller
2024-01-25 7:19 [PATCH v7 0/3] Add support for Allwinner PWM on D1/T113s/R329 SoCs Aleksandr Shubin
@ 2024-01-25 7:19 ` Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 3/3] riscv: dts: allwinner: d1: Add pwm node Aleksandr Shubin
2 siblings, 0 replies; 7+ messages in thread
From: Aleksandr Shubin @ 2024-01-25 7:19 UTC (permalink / raw)
To: linux-kernel
Cc: Aleksandr Shubin, Conor Dooley, Uwe Kleine-König,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Chen-Yu Tsai,
Jernej Skrabec, Samuel Holland, Paul Walmsley, Palmer Dabbelt,
Albert Ou, Philipp Zabel, Cristian Ciocaltea, Marc Kleine-Budde,
Maksim Kiselev, John Watts, Cheo Fusi, linux-pwm, devicetree,
linux-arm-kernel, linux-sunxi, linux-riscv
Allwinner's D1, T113-S3 and R329 SoCs have a new pwm
controller witch is different from the previous pwm-sun4i.
The D1 and T113 are identical in terms of peripherals,
they differ only in the architecture of the CPU core, and
even share the majority of their DT. Because of that,
using the same compatible makes sense.
The R329 is a different SoC though, and should have
a different compatible string added, especially as there
is a difference in the number of channels.
D1 and T113s SoCs have one PWM controller with 8 channels.
R329 SoC has two PWM controllers in both power domains, one of
them has 9 channels (CPUX one) and the other has 6 (CPUS one).
Add a device tree binding for them.
Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
---
.../bindings/pwm/allwinner,sun20i-pwm.yaml | 88 +++++++++++++++++++
1 file changed, 88 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
new file mode 100644
index 000000000000..716f75776006
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/allwinner,sun20i-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner D1, T113-S3 and R329 PWM
+
+maintainers:
+ - Aleksandr Shubin <privatesub2@gmail.com>
+ - Brandon Cheo Fusi <fusibrandon13@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: allwinner,sun20i-d1-pwm
+ - items:
+ - const: allwinner,sun20i-r329-pwm
+ - const: allwinner,sun20i-d1-pwm
+
+ reg:
+ maxItems: 1
+
+ "#pwm-cells":
+ const: 3
+
+ clocks:
+ items:
+ - description: Bus clock
+ - description: 24 MHz oscillator
+ - description: APB0 clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: hosc
+ - const: apb0
+
+ resets:
+ maxItems: 1
+
+ allwinner,pwm-channels:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The number of PWM channels configured for this instance
+ enum: [6, 9]
+
+allOf:
+ - $ref: pwm.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun20i-r329-pwm
+
+ then:
+ required:
+ - allwinner,pwm-channels
+
+ else:
+ properties:
+ allwinner,pwm-channels: false
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#pwm-cells"
+ - clocks
+ - clock-names
+ - resets
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun20i-d1-ccu.h>
+ #include <dt-bindings/reset/sun20i-d1-ccu.h>
+
+ pwm: pwm@2000c00 {
+ compatible = "allwinner,sun20i-d1-pwm";
+ reg = <0x02000c00 0x400>;
+ clocks = <&ccu CLK_BUS_PWM>, <&dcxo>, <&ccu CLK_APB0>;
+ clock-names = "bus", "hosc", "apb0";
+ resets = <&ccu RST_BUS_PWM>;
+ #pwm-cells = <0x3>;
+ };
+
+...
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
2024-01-25 7:19 [PATCH v7 0/3] Add support for Allwinner PWM on D1/T113s/R329 SoCs Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller Aleksandr Shubin
@ 2024-01-25 7:19 ` Aleksandr Shubin
2024-01-25 15:11 ` kernel test robot
` (2 more replies)
2024-01-25 7:19 ` [PATCH v7 3/3] riscv: dts: allwinner: d1: Add pwm node Aleksandr Shubin
2 siblings, 3 replies; 7+ messages in thread
From: Aleksandr Shubin @ 2024-01-25 7:19 UTC (permalink / raw)
To: linux-kernel
Cc: Aleksandr Shubin, Brandon Cheo Fusi, Uwe Kleine-König,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Chen-Yu Tsai,
Jernej Skrabec, Samuel Holland, Paul Walmsley, Palmer Dabbelt,
Albert Ou, Philipp Zabel, Marc Kleine-Budde, Cristian Ciocaltea,
Maksim Kiselev, John Watts, linux-pwm, devicetree,
linux-arm-kernel, linux-sunxi, linux-riscv
Allwinner's D1, T113-S3 and R329 SoCs have a quite different PWM
controllers with ones supported by pwm-sun4i driver.
This patch adds a PWM controller driver for Allwinner's D1,
T113-S3 and R329 SoCs. The main difference between these SoCs
is the number of channels defined by the DT property.
Co-developed-by: Brandon Cheo Fusi <fusibrandon13@gmail.com>
Signed-off-by: Brandon Cheo Fusi <fusibrandon13@gmail.com>
Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com>
---
drivers/pwm/Kconfig | 10 ++
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-sun20i.c | 380 +++++++++++++++++++++++++++++++++++++++
3 files changed, 391 insertions(+)
create mode 100644 drivers/pwm/pwm-sun20i.c
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 4b956d661755..d2e0a080eb3c 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -625,6 +625,16 @@ config PWM_SUN4I
To compile this driver as a module, choose M here: the module
will be called pwm-sun4i.
+config PWM_SUN20I
+ tristate "Allwinner D1/T113s/R329 PWM support"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on COMMON_CLK
+ help
+ Generic PWM framework driver for Allwinner D1/T113s/R329 SoCs.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-sun20i.
+
config PWM_SUNPLUS
tristate "Sunplus PWM support"
depends on ARCH_SUNPLUS || COMPILE_TEST
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index c5ec9e168ee7..dcad0d5a2430 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -58,6 +58,7 @@ obj-$(CONFIG_PWM_STM32) += pwm-stm32.o
obj-$(CONFIG_PWM_STM32_LP) += pwm-stm32-lp.o
obj-$(CONFIG_PWM_STMPE) += pwm-stmpe.o
obj-$(CONFIG_PWM_SUN4I) += pwm-sun4i.o
+obj-$(CONFIG_PWM_SUN20I) += pwm-sun20i.o
obj-$(CONFIG_PWM_SUNPLUS) += pwm-sunplus.o
obj-$(CONFIG_PWM_TEGRA) += pwm-tegra.o
obj-$(CONFIG_PWM_TIECAP) += pwm-tiecap.o
diff --git a/drivers/pwm/pwm-sun20i.c b/drivers/pwm/pwm-sun20i.c
new file mode 100644
index 000000000000..d9e151f27f20
--- /dev/null
+++ b/drivers/pwm/pwm-sun20i.c
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PWM Controller Driver for sunxi platforms (D1, T113-S3 and R329)
+ *
+ * Limitations:
+ * - When the parameters change, current running period will not be completed
+ * and run new settings immediately.
+ * - It output HIGH-Z state when PWM channel disabled.
+ *
+ * Copyright (c) 2023 Aleksandr Shubin <privatesub2@gmail.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/pwm.h>
+#include <linux/reset.h>
+
+#define SUN20I_PWM_CLK_CFG(chan) (0x20 + (((chan) >> 1) * 0x4))
+#define SUN20I_PWM_CLK_CFG_SRC GENMASK(8, 7)
+#define SUN20I_PWM_CLK_CFG_DIV_M GENMASK(3, 0)
+#define SUN20I_PWM_CLK_DIV_M_MAX 8
+
+#define SUN20I_PWM_CLK_GATE 0x40
+#define SUN20I_PWM_CLK_GATE_BYPASS(chan) BIT((chan) + 16)
+#define SUN20I_PWM_CLK_GATE_GATING(chan) BIT(chan)
+
+#define SUN20I_PWM_ENABLE 0x80
+#define SUN20I_PWM_ENABLE_EN(chan) BIT(chan)
+
+#define SUN20I_PWM_CTL(chan) (0x100 + (chan) * 0x20)
+#define SUN20I_PWM_CTL_ACT_STA BIT(8)
+#define SUN20I_PWM_CTL_PRESCAL_K GENMASK(7, 0)
+#define SUN20I_PWM_CTL_PRESCAL_K_MAX 0xff
+
+#define SUN20I_PWM_PERIOD(chan) (0x104 + (chan) * 0x20)
+#define SUN20I_PWM_PERIOD_ENTIRE_CYCLE GENMASK(31, 16)
+#define SUN20I_PWM_PERIOD_ACT_CYCLE GENMASK(15, 0)
+
+#define SUN20I_PWM_PCNTR_SIZE BIT(16)
+
+/**
+ * SUN20I_PWM_MAGIC is used to quickly compute the values of the clock dividers
+ * div_m (SUN20I_PWM_CLK_CFG_DIV_M) & prescale_k (SUN20I_PWM_CTL_PRESCAL_K)
+ * without using a loop. These dividers limit the # of cycles in a period
+ * to SUN20I_PWM_PCNTR_SIZE by applying a scaling factor of
+ * 1/(div_m * (prescale_k + 1)) to the clock source.
+ *
+ * SUN20I_PWM_MAGIC is derived by solving for div_m and prescale_k
+ * such that for a given requested period,
+ *
+ * i) div_m is minimized for any prescale_k ≤ SUN20I_PWM_CTL_PRESCAL_K_MAX,
+ * ii) prescale_k is minimized.
+ *
+ * The derivation proceeds as follows, with val = # of cycles for reqested
+ * period:
+ *
+ * for a given value of div_m we want the smallest prescale_k such that
+ *
+ * (val >> div_m) // (prescale_k + 1) ≤ 65536 (SUN20I_PWM_PCNTR_SIZE)
+ *
+ * This is equivalent to:
+ *
+ * (val >> div_m) ≤ 65536 * (prescale_k + 1) + prescale_k
+ * ⟺ (val >> div_m) ≤ 65537 * prescale_k + 65536
+ * ⟺ (val >> div_m) - 65536 ≤ 65537 * prescale_k
+ * ⟺ ((val >> div_m) - 65536) / 65537 ≤ prescale_k
+ *
+ * As prescale_k is integer, this becomes
+ *
+ * ((val >> div_m) - 65536) // 65537 ≤ prescale_k
+ *
+ * And is minimized at
+ *
+ * ((val >> div_m) - 65536) // 65537
+ *
+ * Now we pick the smallest div_m that satifies prescale_k ≤ 255
+ * (i.e SUN20I_PWM_CTL_PRESCAL_K_MAX),
+ *
+ * ((val >> div_m) - 65536) // 65537 ≤ 255
+ * ⟺ (val >> div_m) - 65536 ≤ 255 * 65537 + 65536
+ * ⟺ val >> div_m ≤ 255 * 65537 + 2 * 65536
+ * ⟺ val >> div_m < (255 * 65537 + 2 * 65536 + 1)
+ * ⟺ div_m = fls((val) / (255 * 65537 + 2 * 65536 + 1))
+ *
+ * Suggested by Uwe Kleine-König
+ */
+#define SUN20I_PWM_MAGIC (255 * 65537 + 2 * 65536 + 1)
+
+struct sun20i_pwm_chip {
+ struct clk *clk_bus, *clk_hosc, *clk_apb0;
+ struct reset_control *rst;
+ struct pwm_chip chip;
+ void __iomem *base;
+ /* Mutex to protect pwm apply state */
+ struct mutex mutex;
+};
+
+static inline struct sun20i_pwm_chip *to_sun20i_pwm_chip(struct pwm_chip *chip)
+{
+ return container_of(chip, struct sun20i_pwm_chip, chip);
+}
+
+static inline u32 sun20i_pwm_readl(struct sun20i_pwm_chip *chip,
+ unsigned long offset)
+{
+ return readl(chip->base + offset);
+}
+
+static inline void sun20i_pwm_writel(struct sun20i_pwm_chip *chip,
+ u32 val, unsigned long offset)
+{
+ writel(val, chip->base + offset);
+}
+
+static int sun20i_pwm_get_state(struct pwm_chip *chip,
+ struct pwm_device *pwm,
+ struct pwm_state *state)
+{
+ struct sun20i_pwm_chip *sun20i_chip = to_sun20i_pwm_chip(chip);
+ u16 ent_cycle, act_cycle, prescale_k;
+ u64 clk_rate, tmp;
+ u8 div_m;
+ u32 val;
+
+ mutex_lock(&sun20i_chip->mutex);
+
+ val = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_CLK_CFG(pwm->hwpwm));
+ div_m = FIELD_GET(SUN20I_PWM_CLK_CFG_DIV_M, val);
+ if (div_m > SUN20I_PWM_CLK_DIV_M_MAX)
+ div_m = SUN20I_PWM_CLK_DIV_M_MAX;
+
+ if (FIELD_GET(SUN20I_PWM_CLK_CFG_SRC, val) == 0)
+ clk_rate = clk_get_rate(sun20i_chip->clk_hosc);
+ else
+ clk_rate = clk_get_rate(sun20i_chip->clk_apb0);
+
+ val = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_CTL(pwm->hwpwm));
+ state->polarity = (SUN20I_PWM_CTL_ACT_STA & val) ?
+ PWM_POLARITY_NORMAL : PWM_POLARITY_INVERSED;
+
+ prescale_k = FIELD_GET(SUN20I_PWM_CTL_PRESCAL_K, val) + 1;
+
+ val = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_ENABLE);
+ state->enabled = (SUN20I_PWM_ENABLE_EN(pwm->hwpwm) & val) ? true : false;
+
+ val = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_PERIOD(pwm->hwpwm));
+
+ mutex_unlock(&sun20i_chip->mutex);
+
+ act_cycle = FIELD_GET(SUN20I_PWM_PERIOD_ACT_CYCLE, val);
+ ent_cycle = FIELD_GET(SUN20I_PWM_PERIOD_ENTIRE_CYCLE, val);
+
+ /*
+ * The duration of the active phase should not be longer
+ * than the duration of the period
+ */
+ if (act_cycle > ent_cycle)
+ act_cycle = ent_cycle;
+
+ tmp = ((u64)(act_cycle) * prescale_k << div_m) * NSEC_PER_SEC;
+ state->duty_cycle = DIV_ROUND_UP_ULL(tmp, clk_rate);
+ tmp = ((u64)(ent_cycle) * prescale_k << div_m) * NSEC_PER_SEC;
+ state->period = DIV_ROUND_UP_ULL(tmp, clk_rate);
+
+ return 0;
+}
+
+static int sun20i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
+ const struct pwm_state *state)
+{
+ struct sun20i_pwm_chip *sun20i_chip = to_sun20i_pwm_chip(chip);
+ u64 bus_rate, hosc_rate, val, ent_cycle, act_cycle;
+ u32 clk_gate, clk_cfg, pwm_en, ctl, reg_period;
+ u32 prescale_k, div_m;
+ bool use_bus_clk;
+ int ret = 0;
+
+ mutex_lock(&sun20i_chip->mutex);
+
+ pwm_en = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_ENABLE);
+
+ if (state->enabled != pwm->state.enabled) {
+ clk_gate = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_CLK_GATE);
+
+ if (!state->enabled) {
+ clk_gate &= ~SUN20I_PWM_CLK_GATE_GATING(pwm->hwpwm);
+ pwm_en &= ~SUN20I_PWM_ENABLE_EN(pwm->hwpwm);
+ sun20i_pwm_writel(sun20i_chip, pwm_en, SUN20I_PWM_ENABLE);
+ sun20i_pwm_writel(sun20i_chip, clk_gate, SUN20I_PWM_CLK_GATE);
+ }
+ }
+
+ if (state->polarity != pwm->state.polarity ||
+ state->duty_cycle != pwm->state.duty_cycle ||
+ state->period != pwm->state.period) {
+ ctl = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_CTL(pwm->hwpwm));
+ clk_cfg = sun20i_pwm_readl(sun20i_chip, SUN20I_PWM_CLK_CFG(pwm->hwpwm));
+ hosc_rate = clk_get_rate(sun20i_chip->clk_hosc);
+ bus_rate = clk_get_rate(sun20i_chip->clk_apb0);
+ if (pwm_en & SUN20I_PWM_ENABLE_EN(pwm->hwpwm ^ 1)) {
+ /* if the neighbor channel is enable, check period only */
+ use_bus_clk = FIELD_GET(SUN20I_PWM_CLK_CFG_SRC, clk_cfg) != 0;
+ val = mul_u64_u64_div_u64(state->period,
+ (use_bus_clk ? bus_rate : hosc_rate),
+ NSEC_PER_SEC);
+
+ div_m = FIELD_GET(SUN20I_PWM_CLK_CFG_DIV_M, clk_cfg);
+ } else {
+ /* check period and select clock source */
+ use_bus_clk = false;
+ val = mul_u64_u64_div_u64(state->period, hosc_rate, NSEC_PER_SEC);
+ if (val <= 1) {
+ use_bus_clk = true;
+ val = mul_u64_u64_div_u64(state->period, bus_rate, NSEC_PER_SEC);
+ if (val <= 1) {
+ ret = -EINVAL;
+ goto unlock_mutex;
+ }
+ }
+ div_m = fls(DIV_ROUND_DOWN_ULL(val, SUN20I_PWM_MAGIC));
+ if (div_m > SUN20I_PWM_CLK_DIV_M_MAX) {
+ ret = -EINVAL;
+ goto unlock_mutex;
+ }
+
+ /* set up the CLK_DIV_M and clock CLK_SRC */
+ clk_cfg = FIELD_PREP(SUN20I_PWM_CLK_CFG_DIV_M, div_m);
+ clk_cfg |= FIELD_PREP(SUN20I_PWM_CLK_CFG_SRC, use_bus_clk);
+
+ sun20i_pwm_writel(sun20i_chip, clk_cfg, SUN20I_PWM_CLK_CFG(pwm->hwpwm));
+ }
+
+ /* calculate prescale_k, PWM entire cycle */
+ ent_cycle = val >> div_m;
+ prescale_k = DIV_ROUND_DOWN_ULL(ent_cycle, 65537);
+ if (prescale_k > SUN20I_PWM_CTL_PRESCAL_K_MAX)
+ prescale_k = SUN20I_PWM_CTL_PRESCAL_K_MAX;
+
+ do_div(ent_cycle, prescale_k + 1);
+
+ /* for N cycles, PPRx.PWM_ENTIRE_CYCLE = (N-1) */
+ reg_period = FIELD_PREP(SUN20I_PWM_PERIOD_ENTIRE_CYCLE, ent_cycle - 1);
+
+ /* set duty cycle */
+ val = mul_u64_u64_div_u64(state->duty_cycle,
+ (use_bus_clk ? bus_rate : hosc_rate),
+ NSEC_PER_SEC);
+ act_cycle = val >> div_m;
+ do_div(act_cycle, prescale_k + 1);
+
+ /*
+ * The formula of the output period and the duty-cycle for PWM are as follows.
+ * T period = (PWM01_CLK / PWM0_PRESCALE_K)^-1 * (PPR0.PWM_ENTIRE_CYCLE + 1)
+ * T high-level = (PWM01_CLK / PWM0_PRESCALE_K)^-1 * PPR0.PWM_ACT_CYCLE
+ * Duty-cycle = T high-level / T period
+ */
+ reg_period |= FIELD_PREP(SUN20I_PWM_PERIOD_ACT_CYCLE, act_cycle);
+ sun20i_pwm_writel(sun20i_chip, reg_period, SUN20I_PWM_PERIOD(pwm->hwpwm));
+
+ ctl = FIELD_PREP(SUN20I_PWM_CTL_PRESCAL_K, prescale_k);
+ if (state->polarity == PWM_POLARITY_NORMAL)
+ ctl |= SUN20I_PWM_CTL_ACT_STA;
+
+ sun20i_pwm_writel(sun20i_chip, ctl, SUN20I_PWM_CTL(pwm->hwpwm));
+ }
+
+ if (state->enabled != pwm->state.enabled && state->enabled) {
+ clk_gate &= ~SUN20I_PWM_CLK_GATE_BYPASS(pwm->hwpwm);
+ clk_gate |= SUN20I_PWM_CLK_GATE_GATING(pwm->hwpwm);
+ pwm_en |= SUN20I_PWM_ENABLE_EN(pwm->hwpwm);
+ sun20i_pwm_writel(sun20i_chip, pwm_en, SUN20I_PWM_ENABLE);
+ sun20i_pwm_writel(sun20i_chip, clk_gate, SUN20I_PWM_CLK_GATE);
+ }
+
+unlock_mutex:
+ mutex_unlock(&sun20i_chip->mutex);
+
+ return ret;
+}
+
+static const struct pwm_ops sun20i_pwm_ops = {
+ .get_state = sun20i_pwm_get_state,
+ .apply = sun20i_pwm_apply,
+ .owner = THIS_MODULE,
+};
+
+static const struct of_device_id sun20i_pwm_dt_ids[] = {
+ { .compatible = "allwinner,sun20i-d1-pwm" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, sun20i_pwm_dt_ids);
+
+static int sun20i_pwm_probe(struct platform_device *pdev)
+{
+ struct sun20i_pwm_chip *sun20i_chip;
+ int ret;
+
+ sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
+ if (!sun20i_chip)
+ return -ENOMEM;
+
+ sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(sun20i_chip->base))
+ return PTR_ERR(sun20i_chip->base);
+
+ sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
+ if (IS_ERR(sun20i_chip->clk_bus))
+ return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
+ "failed to get bus clock\n");
+
+ sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
+ if (IS_ERR(sun20i_chip->clk_hosc))
+ return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
+ "failed to get hosc clock\n");
+
+ sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
+ if (IS_ERR(sun20i_chip->clk_apb0))
+ return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
+ "failed to get apb0 clock\n");
+
+ sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
+ if (IS_ERR(sun20i_chip->rst))
+ return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
+ "failed to get bus reset\n");
+
+ ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
+ &sun20i_chip->chip.npwm);
+ if (ret)
+ sun20i_chip->chip.npwm = 8;
+
+ if (sun20i_chip->chip.npwm > 16)
+ sun20i_chip->chip.npwm = 16;
+
+ /* Deassert reset */
+ ret = reset_control_deassert(sun20i_chip->rst);
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
+
+ sun20i_chip->chip.dev = &pdev->dev;
+ sun20i_chip->chip.ops = &sun20i_pwm_ops;
+
+ mutex_init(&sun20i_chip->mutex);
+
+ ret = pwmchip_add(&sun20i_chip->chip);
+ if (ret < 0) {
+ reset_control_assert(sun20i_chip->rst);
+ return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
+ }
+
+ platform_set_drvdata(pdev, sun20i_chip);
+
+ return 0;
+}
+
+static void sun20i_pwm_remove(struct platform_device *pdev)
+{
+ struct sun20i_pwm_chip *sun20i_chip = platform_get_drvdata(pdev);
+
+ pwmchip_remove(&sun20i_chip->chip);
+
+ reset_control_assert(sun20i_chip->rst);
+}
+
+static struct platform_driver sun20i_pwm_driver = {
+ .driver = {
+ .name = "sun20i-pwm",
+ .of_match_table = sun20i_pwm_dt_ids,
+ },
+ .probe = sun20i_pwm_probe,
+ .remove_new = sun20i_pwm_remove,
+};
+module_platform_driver(sun20i_pwm_driver);
+
+MODULE_AUTHOR("Aleksandr Shubin <privatesub2@gmail.com>");
+MODULE_DESCRIPTION("Allwinner sun20i PWM driver");
+MODULE_LICENSE("GPL");
--
2.25.1
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v7 3/3] riscv: dts: allwinner: d1: Add pwm node
2024-01-25 7:19 [PATCH v7 0/3] Add support for Allwinner PWM on D1/T113s/R329 SoCs Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
@ 2024-01-25 7:19 ` Aleksandr Shubin
2 siblings, 0 replies; 7+ messages in thread
From: Aleksandr Shubin @ 2024-01-25 7:19 UTC (permalink / raw)
To: linux-kernel
Cc: Aleksandr Shubin, Uwe Kleine-König, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Chen-Yu Tsai, Jernej Skrabec,
Samuel Holland, Paul Walmsley, Palmer Dabbelt, Albert Ou,
Philipp Zabel, Maksim Kiselev, John Watts, Cristian Ciocaltea,
Marc Kleine-Budde, Cheo Fusi, linux-pwm, devicetree,
linux-arm-kernel, linux-sunxi, linux-riscv
D1 and T113s contain a pwm controller with 8 channels.
This controller is supported by the sun20i-pwm driver.
Add a device tree node for it.
Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com>
---
arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
index 5a9d7f5a75b4..435a1e66aa6a 100644
--- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
@@ -145,6 +145,18 @@ uart3_pb_pins: uart3-pb-pins {
};
};
+ pwm: pwm@2000c00 {
+ compatible = "allwinner,sun20i-d1-pwm";
+ reg = <0x02000c00 0x400>;
+ clocks = <&ccu CLK_BUS_PWM>,
+ <&dcxo>,
+ <&ccu CLK_APB0>;
+ clock-names = "bus", "hosc", "apb0";
+ resets = <&ccu RST_BUS_PWM>;
+ status = "disabled";
+ #pwm-cells = <0x3>;
+ };
+
ccu: clock-controller@2001000 {
compatible = "allwinner,sun20i-d1-ccu";
reg = <0x2001000 0x1000>;
--
2.25.1
_______________________________________________
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
2024-01-25 7:19 ` [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
@ 2024-01-25 15:11 ` kernel test robot
2024-01-25 23:13 ` kernel test robot
2024-01-26 0:38 ` kernel test robot
2 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2024-01-25 15:11 UTC (permalink / raw)
To: Aleksandr Shubin, linux-kernel
Cc: oe-kbuild-all, Aleksandr Shubin, Brandon Cheo Fusi,
Uwe Kleine-König, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Chen-Yu Tsai, Jernej Skrabec, Samuel Holland,
Paul Walmsley, Palmer Dabbelt, Albert Ou, Philipp Zabel,
Marc Kleine-Budde, Cristian Ciocaltea, Maksim Kiselev, John Watts,
linux-pwm, devicetree, linux-arm-kernel, linux-sunxi, linux-riscv
Hi Aleksandr,
kernel test robot noticed the following build warnings:
[auto build test WARNING on robh/for-next]
[also build test WARNING on sunxi/sunxi/for-next linus/master v6.8-rc1 next-20240125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Aleksandr-Shubin/dt-bindings-pwm-Add-binding-for-Allwinner-D1-T113-S3-R329-PWM-controller/20240125-152445
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20240125072032.1151383-3-privatesub2%40gmail.com
patch subject: [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20240125/202401252250.TYU33FhT-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240125/202401252250.TYU33FhT-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401252250.TYU33FhT-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/pwm/pwm-sun20i.c:288:10: error: 'const struct pwm_ops' has no member named 'owner'
288 | .owner = THIS_MODULE,
| ^~~~~
In file included from include/linux/printk.h:6,
from include/linux/kernel.h:31,
from include/linux/clk.h:13,
from drivers/pwm/pwm-sun20i.c:14:
include/linux/init.h:186:21: error: initialization of 'int (*)(struct pwm_chip *, struct pwm_device *, struct pwm_state *)' from incompatible pointer type 'struct module *' [-Werror=incompatible-pointer-types]
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
include/linux/init.h:186:21: note: (near initialization for 'sun20i_pwm_ops.get_state')
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
include/linux/init.h:186:21: warning: initialized field overwritten [-Woverride-init]
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
include/linux/init.h:186:21: note: (near initialization for 'sun20i_pwm_ops.get_state')
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:297:36: warning: 'struct platform_device' declared inside parameter list will not be visible outside of this definition or declaration
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c: In function 'sun20i_pwm_probe':
drivers/pwm/pwm-sun20i.c:302:23: error: implicit declaration of function 'devm_kzalloc' [-Werror=implicit-function-declaration]
302 | sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
| ^~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:302:41: error: invalid use of undefined type 'struct platform_device'
302 | sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
| ^~
drivers/pwm/pwm-sun20i.c:306:29: error: implicit declaration of function 'devm_platform_ioremap_resource' [-Werror=implicit-function-declaration]
306 | sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:306:27: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
306 | sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
| ^
drivers/pwm/pwm-sun20i.c:310:58: error: invalid use of undefined type 'struct platform_device'
310 | sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
| ^~
drivers/pwm/pwm-sun20i.c:312:24: error: implicit declaration of function 'dev_err_probe' [-Werror=implicit-function-declaration]
312 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
| ^~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:312:43: error: invalid use of undefined type 'struct platform_device'
312 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
| ^~
drivers/pwm/pwm-sun20i.c:315:59: error: invalid use of undefined type 'struct platform_device'
315 | sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
| ^~
drivers/pwm/pwm-sun20i.c:317:43: error: invalid use of undefined type 'struct platform_device'
317 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
| ^~
drivers/pwm/pwm-sun20i.c:320:59: error: invalid use of undefined type 'struct platform_device'
320 | sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
| ^~
drivers/pwm/pwm-sun20i.c:322:43: error: invalid use of undefined type 'struct platform_device'
322 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
| ^~
drivers/pwm/pwm-sun20i.c:325:66: error: invalid use of undefined type 'struct platform_device'
325 | sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
| ^~
drivers/pwm/pwm-sun20i.c:327:43: error: invalid use of undefined type 'struct platform_device'
327 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
| ^~
drivers/pwm/pwm-sun20i.c:330:40: error: invalid use of undefined type 'struct platform_device'
330 | ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
| ^~
drivers/pwm/pwm-sun20i.c:341:43: error: invalid use of undefined type 'struct platform_device'
341 | return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
| ^~
drivers/pwm/pwm-sun20i.c:343:38: error: invalid use of undefined type 'struct platform_device'
343 | sun20i_chip->chip.dev = &pdev->dev;
| ^~
drivers/pwm/pwm-sun20i.c:351:43: error: invalid use of undefined type 'struct platform_device'
351 | return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
| ^~
drivers/pwm/pwm-sun20i.c:354:9: error: implicit declaration of function 'platform_set_drvdata' [-Werror=implicit-function-declaration]
354 | platform_set_drvdata(pdev, sun20i_chip);
| ^~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c: At top level:
drivers/pwm/pwm-sun20i.c:359:38: warning: 'struct platform_device' declared inside parameter list will not be visible outside of this definition or declaration
359 | static void sun20i_pwm_remove(struct platform_device *pdev)
| ^~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c: In function 'sun20i_pwm_remove':
drivers/pwm/pwm-sun20i.c:361:47: error: implicit declaration of function 'platform_get_drvdata' [-Werror=implicit-function-declaration]
361 | struct sun20i_pwm_chip *sun20i_chip = platform_get_drvdata(pdev);
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:361:47: warning: initialization of 'struct sun20i_pwm_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
drivers/pwm/pwm-sun20i.c: At top level:
drivers/pwm/pwm-sun20i.c:368:15: error: variable 'sun20i_pwm_driver' has initializer but incomplete type
368 | static struct platform_driver sun20i_pwm_driver = {
| ^~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:369:10: error: 'struct platform_driver' has no member named 'driver'
369 | .driver = {
| ^~~~~~
drivers/pwm/pwm-sun20i.c:369:19: error: extra brace group at end of initializer
369 | .driver = {
| ^
drivers/pwm/pwm-sun20i.c:369:19: note: (near initialization for 'sun20i_pwm_driver')
>> drivers/pwm/pwm-sun20i.c:369:19: warning: excess elements in struct initializer
drivers/pwm/pwm-sun20i.c:369:19: note: (near initialization for 'sun20i_pwm_driver')
drivers/pwm/pwm-sun20i.c:373:10: error: 'struct platform_driver' has no member named 'probe'
373 | .probe = sun20i_pwm_probe,
| ^~~~~
drivers/pwm/pwm-sun20i.c:373:18: warning: excess elements in struct initializer
373 | .probe = sun20i_pwm_probe,
| ^~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:373:18: note: (near initialization for 'sun20i_pwm_driver')
drivers/pwm/pwm-sun20i.c:374:10: error: 'struct platform_driver' has no member named 'remove_new'
374 | .remove_new = sun20i_pwm_remove,
| ^~~~~~~~~~
drivers/pwm/pwm-sun20i.c:374:23: warning: excess elements in struct initializer
374 | .remove_new = sun20i_pwm_remove,
| ^~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:374:23: note: (near initialization for 'sun20i_pwm_driver')
>> drivers/pwm/pwm-sun20i.c:376:1: warning: data definition has no type or storage class
376 | module_platform_driver(sun20i_pwm_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:376:1: error: type defaults to 'int' in declaration of 'module_platform_driver' [-Werror=implicit-int]
>> drivers/pwm/pwm-sun20i.c:376:1: warning: parameter names (without types) in function declaration
drivers/pwm/pwm-sun20i.c:368:31: error: storage size of 'sun20i_pwm_driver' isn't known
368 | static struct platform_driver sun20i_pwm_driver = {
| ^~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:368:31: warning: 'sun20i_pwm_driver' defined but not used [-Wunused-variable]
cc1: some warnings being treated as errors
vim +297 drivers/pwm/pwm-sun20i.c
296
> 297 static int sun20i_pwm_probe(struct platform_device *pdev)
298 {
299 struct sun20i_pwm_chip *sun20i_chip;
300 int ret;
301
302 sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
303 if (!sun20i_chip)
304 return -ENOMEM;
305
> 306 sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
307 if (IS_ERR(sun20i_chip->base))
308 return PTR_ERR(sun20i_chip->base);
309
310 sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
311 if (IS_ERR(sun20i_chip->clk_bus))
312 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
313 "failed to get bus clock\n");
314
315 sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
316 if (IS_ERR(sun20i_chip->clk_hosc))
317 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
318 "failed to get hosc clock\n");
319
320 sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
321 if (IS_ERR(sun20i_chip->clk_apb0))
322 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
323 "failed to get apb0 clock\n");
324
325 sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
326 if (IS_ERR(sun20i_chip->rst))
327 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
328 "failed to get bus reset\n");
329
330 ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
331 &sun20i_chip->chip.npwm);
332 if (ret)
333 sun20i_chip->chip.npwm = 8;
334
335 if (sun20i_chip->chip.npwm > 16)
336 sun20i_chip->chip.npwm = 16;
337
338 /* Deassert reset */
339 ret = reset_control_deassert(sun20i_chip->rst);
340 if (ret)
341 return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
342
343 sun20i_chip->chip.dev = &pdev->dev;
344 sun20i_chip->chip.ops = &sun20i_pwm_ops;
345
346 mutex_init(&sun20i_chip->mutex);
347
348 ret = pwmchip_add(&sun20i_chip->chip);
349 if (ret < 0) {
350 reset_control_assert(sun20i_chip->rst);
351 return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
352 }
353
354 platform_set_drvdata(pdev, sun20i_chip);
355
356 return 0;
357 }
358
359 static void sun20i_pwm_remove(struct platform_device *pdev)
360 {
> 361 struct sun20i_pwm_chip *sun20i_chip = platform_get_drvdata(pdev);
362
363 pwmchip_remove(&sun20i_chip->chip);
364
365 reset_control_assert(sun20i_chip->rst);
366 }
367
> 368 static struct platform_driver sun20i_pwm_driver = {
> 369 .driver = {
370 .name = "sun20i-pwm",
371 .of_match_table = sun20i_pwm_dt_ids,
372 },
373 .probe = sun20i_pwm_probe,
374 .remove_new = sun20i_pwm_remove,
375 };
> 376 module_platform_driver(sun20i_pwm_driver);
377
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
2024-01-25 7:19 ` [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
2024-01-25 15:11 ` kernel test robot
@ 2024-01-25 23:13 ` kernel test robot
2024-01-26 0:38 ` kernel test robot
2 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2024-01-25 23:13 UTC (permalink / raw)
To: Aleksandr Shubin, linux-kernel
Cc: oe-kbuild-all, Aleksandr Shubin, Brandon Cheo Fusi,
Uwe Kleine-König, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Chen-Yu Tsai, Jernej Skrabec, Samuel Holland,
Paul Walmsley, Palmer Dabbelt, Albert Ou, Philipp Zabel,
Marc Kleine-Budde, Cristian Ciocaltea, Maksim Kiselev, John Watts,
linux-pwm, devicetree, linux-arm-kernel, linux-sunxi, linux-riscv
Hi Aleksandr,
kernel test robot noticed the following build errors:
[auto build test ERROR on robh/for-next]
[also build test ERROR on sunxi/sunxi/for-next linus/master v6.8-rc1 next-20240125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Aleksandr-Shubin/dt-bindings-pwm-Add-binding-for-Allwinner-D1-T113-S3-R329-PWM-controller/20240125-152445
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20240125072032.1151383-3-privatesub2%40gmail.com
patch subject: [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20240126/202401260632.l2X5DTxa-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240126/202401260632.l2X5DTxa-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401260632.l2X5DTxa-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/pwm/pwm-sun20i.c:288:10: error: 'const struct pwm_ops' has no member named 'owner'
288 | .owner = THIS_MODULE,
| ^~~~~
In file included from include/linux/printk.h:6,
from include/linux/kernel.h:31,
from include/linux/clk.h:13,
from drivers/pwm/pwm-sun20i.c:14:
>> include/linux/init.h:186:21: error: initialization of 'int (*)(struct pwm_chip *, struct pwm_device *, struct pwm_state *)' from incompatible pointer type 'struct module *' [-Werror=incompatible-pointer-types]
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
include/linux/init.h:186:21: note: (near initialization for 'sun20i_pwm_ops.get_state')
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
include/linux/init.h:186:21: warning: initialized field overwritten [-Woverride-init]
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
include/linux/init.h:186:21: note: (near initialization for 'sun20i_pwm_ops.get_state')
186 | #define THIS_MODULE ((struct module *)0)
| ^
drivers/pwm/pwm-sun20i.c:288:18: note: in expansion of macro 'THIS_MODULE'
288 | .owner = THIS_MODULE,
| ^~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:297:36: warning: 'struct platform_device' declared inside parameter list will not be visible outside of this definition or declaration
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c: In function 'sun20i_pwm_probe':
>> drivers/pwm/pwm-sun20i.c:302:23: error: implicit declaration of function 'devm_kzalloc' [-Werror=implicit-function-declaration]
302 | sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
| ^~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:302:41: error: invalid use of undefined type 'struct platform_device'
302 | sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
| ^~
>> drivers/pwm/pwm-sun20i.c:306:29: error: implicit declaration of function 'devm_platform_ioremap_resource' [-Werror=implicit-function-declaration]
306 | sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:306:27: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
306 | sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
| ^
drivers/pwm/pwm-sun20i.c:310:58: error: invalid use of undefined type 'struct platform_device'
310 | sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
| ^~
>> drivers/pwm/pwm-sun20i.c:312:24: error: implicit declaration of function 'dev_err_probe' [-Werror=implicit-function-declaration]
312 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
| ^~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:312:43: error: invalid use of undefined type 'struct platform_device'
312 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
| ^~
drivers/pwm/pwm-sun20i.c:315:59: error: invalid use of undefined type 'struct platform_device'
315 | sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
| ^~
drivers/pwm/pwm-sun20i.c:317:43: error: invalid use of undefined type 'struct platform_device'
317 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
| ^~
drivers/pwm/pwm-sun20i.c:320:59: error: invalid use of undefined type 'struct platform_device'
320 | sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
| ^~
drivers/pwm/pwm-sun20i.c:322:43: error: invalid use of undefined type 'struct platform_device'
322 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
| ^~
drivers/pwm/pwm-sun20i.c:325:66: error: invalid use of undefined type 'struct platform_device'
325 | sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
| ^~
drivers/pwm/pwm-sun20i.c:327:43: error: invalid use of undefined type 'struct platform_device'
327 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
| ^~
drivers/pwm/pwm-sun20i.c:330:40: error: invalid use of undefined type 'struct platform_device'
330 | ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
| ^~
drivers/pwm/pwm-sun20i.c:341:43: error: invalid use of undefined type 'struct platform_device'
341 | return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
| ^~
drivers/pwm/pwm-sun20i.c:343:38: error: invalid use of undefined type 'struct platform_device'
343 | sun20i_chip->chip.dev = &pdev->dev;
| ^~
drivers/pwm/pwm-sun20i.c:351:43: error: invalid use of undefined type 'struct platform_device'
351 | return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
| ^~
>> drivers/pwm/pwm-sun20i.c:354:9: error: implicit declaration of function 'platform_set_drvdata' [-Werror=implicit-function-declaration]
354 | platform_set_drvdata(pdev, sun20i_chip);
| ^~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c: At top level:
drivers/pwm/pwm-sun20i.c:359:38: warning: 'struct platform_device' declared inside parameter list will not be visible outside of this definition or declaration
359 | static void sun20i_pwm_remove(struct platform_device *pdev)
| ^~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c: In function 'sun20i_pwm_remove':
>> drivers/pwm/pwm-sun20i.c:361:47: error: implicit declaration of function 'platform_get_drvdata' [-Werror=implicit-function-declaration]
361 | struct sun20i_pwm_chip *sun20i_chip = platform_get_drvdata(pdev);
| ^~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:361:47: warning: initialization of 'struct sun20i_pwm_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
drivers/pwm/pwm-sun20i.c: At top level:
>> drivers/pwm/pwm-sun20i.c:368:15: error: variable 'sun20i_pwm_driver' has initializer but incomplete type
368 | static struct platform_driver sun20i_pwm_driver = {
| ^~~~~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:369:10: error: 'struct platform_driver' has no member named 'driver'
369 | .driver = {
| ^~~~~~
>> drivers/pwm/pwm-sun20i.c:369:19: error: extra brace group at end of initializer
369 | .driver = {
| ^
drivers/pwm/pwm-sun20i.c:369:19: note: (near initialization for 'sun20i_pwm_driver')
drivers/pwm/pwm-sun20i.c:369:19: warning: excess elements in struct initializer
drivers/pwm/pwm-sun20i.c:369:19: note: (near initialization for 'sun20i_pwm_driver')
>> drivers/pwm/pwm-sun20i.c:373:10: error: 'struct platform_driver' has no member named 'probe'
373 | .probe = sun20i_pwm_probe,
| ^~~~~
drivers/pwm/pwm-sun20i.c:373:18: warning: excess elements in struct initializer
373 | .probe = sun20i_pwm_probe,
| ^~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:373:18: note: (near initialization for 'sun20i_pwm_driver')
>> drivers/pwm/pwm-sun20i.c:374:10: error: 'struct platform_driver' has no member named 'remove_new'
374 | .remove_new = sun20i_pwm_remove,
| ^~~~~~~~~~
drivers/pwm/pwm-sun20i.c:374:23: warning: excess elements in struct initializer
374 | .remove_new = sun20i_pwm_remove,
| ^~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:374:23: note: (near initialization for 'sun20i_pwm_driver')
drivers/pwm/pwm-sun20i.c:376:1: warning: data definition has no type or storage class
376 | module_platform_driver(sun20i_pwm_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:376:1: error: type defaults to 'int' in declaration of 'module_platform_driver' [-Werror=implicit-int]
drivers/pwm/pwm-sun20i.c:376:1: warning: parameter names (without types) in function declaration
>> drivers/pwm/pwm-sun20i.c:368:31: error: storage size of 'sun20i_pwm_driver' isn't known
368 | static struct platform_driver sun20i_pwm_driver = {
| ^~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:368:31: warning: 'sun20i_pwm_driver' defined but not used [-Wunused-variable]
cc1: some warnings being treated as errors
vim +288 drivers/pwm/pwm-sun20i.c
284
285 static const struct pwm_ops sun20i_pwm_ops = {
286 .get_state = sun20i_pwm_get_state,
287 .apply = sun20i_pwm_apply,
> 288 .owner = THIS_MODULE,
289 };
290
291 static const struct of_device_id sun20i_pwm_dt_ids[] = {
292 { .compatible = "allwinner,sun20i-d1-pwm" },
293 { },
294 };
295 MODULE_DEVICE_TABLE(of, sun20i_pwm_dt_ids);
296
297 static int sun20i_pwm_probe(struct platform_device *pdev)
298 {
299 struct sun20i_pwm_chip *sun20i_chip;
300 int ret;
301
> 302 sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
303 if (!sun20i_chip)
304 return -ENOMEM;
305
> 306 sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
307 if (IS_ERR(sun20i_chip->base))
308 return PTR_ERR(sun20i_chip->base);
309
310 sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
311 if (IS_ERR(sun20i_chip->clk_bus))
> 312 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
313 "failed to get bus clock\n");
314
315 sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
316 if (IS_ERR(sun20i_chip->clk_hosc))
317 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
318 "failed to get hosc clock\n");
319
320 sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
321 if (IS_ERR(sun20i_chip->clk_apb0))
322 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
323 "failed to get apb0 clock\n");
324
325 sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
326 if (IS_ERR(sun20i_chip->rst))
327 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
328 "failed to get bus reset\n");
329
330 ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
331 &sun20i_chip->chip.npwm);
332 if (ret)
333 sun20i_chip->chip.npwm = 8;
334
335 if (sun20i_chip->chip.npwm > 16)
336 sun20i_chip->chip.npwm = 16;
337
338 /* Deassert reset */
339 ret = reset_control_deassert(sun20i_chip->rst);
340 if (ret)
341 return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
342
343 sun20i_chip->chip.dev = &pdev->dev;
344 sun20i_chip->chip.ops = &sun20i_pwm_ops;
345
346 mutex_init(&sun20i_chip->mutex);
347
348 ret = pwmchip_add(&sun20i_chip->chip);
349 if (ret < 0) {
350 reset_control_assert(sun20i_chip->rst);
351 return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
352 }
353
> 354 platform_set_drvdata(pdev, sun20i_chip);
355
356 return 0;
357 }
358
359 static void sun20i_pwm_remove(struct platform_device *pdev)
360 {
> 361 struct sun20i_pwm_chip *sun20i_chip = platform_get_drvdata(pdev);
362
363 pwmchip_remove(&sun20i_chip->chip);
364
365 reset_control_assert(sun20i_chip->rst);
366 }
367
> 368 static struct platform_driver sun20i_pwm_driver = {
> 369 .driver = {
370 .name = "sun20i-pwm",
371 .of_match_table = sun20i_pwm_dt_ids,
372 },
> 373 .probe = sun20i_pwm_probe,
> 374 .remove_new = sun20i_pwm_remove,
375 };
> 376 module_platform_driver(sun20i_pwm_driver);
377
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
2024-01-25 7:19 ` [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
2024-01-25 15:11 ` kernel test robot
2024-01-25 23:13 ` kernel test robot
@ 2024-01-26 0:38 ` kernel test robot
2 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2024-01-26 0:38 UTC (permalink / raw)
To: Aleksandr Shubin, linux-kernel
Cc: llvm, oe-kbuild-all, Aleksandr Shubin, Brandon Cheo Fusi,
Uwe Kleine-König, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Chen-Yu Tsai, Jernej Skrabec, Samuel Holland,
Paul Walmsley, Palmer Dabbelt, Albert Ou, Philipp Zabel,
Marc Kleine-Budde, Cristian Ciocaltea, Maksim Kiselev, John Watts,
linux-pwm, devicetree, linux-arm-kernel, linux-sunxi, linux-riscv
Hi Aleksandr,
kernel test robot noticed the following build errors:
[auto build test ERROR on robh/for-next]
[also build test ERROR on sunxi/sunxi/for-next linus/master v6.8-rc1 next-20240125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Aleksandr-Shubin/dt-bindings-pwm-Add-binding-for-Allwinner-D1-T113-S3-R329-PWM-controller/20240125-152445
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20240125072032.1151383-3-privatesub2%40gmail.com
patch subject: [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240126/202401260832.fN2PCI3u-lkp@intel.com/config)
compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project a31a60074717fc40887cfe132b77eec93bedd307)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240126/202401260832.fN2PCI3u-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401260832.fN2PCI3u-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from drivers/pwm/pwm-sun20i.c:16:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/pwm/pwm-sun20i.c:16:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/pwm/pwm-sun20i.c:16:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
>> drivers/pwm/pwm-sun20i.c:288:3: error: field designator 'owner' does not refer to any field in type 'const struct pwm_ops'
288 | .owner = THIS_MODULE,
| ~^~~~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-sun20i.c:297:36: warning: declaration of 'struct platform_device' will not be visible outside of this function [-Wvisibility]
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
>> drivers/pwm/pwm-sun20i.c:302:16: error: call to undeclared function 'devm_kzalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
302 | sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
| ^
>> drivers/pwm/pwm-sun20i.c:302:34: error: incomplete definition of type 'struct platform_device'
302 | sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
>> drivers/pwm/pwm-sun20i.c:306:22: error: call to undeclared function 'devm_platform_ioremap_resource'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
306 | sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
| ^
>> drivers/pwm/pwm-sun20i.c:306:20: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
306 | sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-sun20i.c:310:51: error: incomplete definition of type 'struct platform_device'
310 | sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
>> drivers/pwm/pwm-sun20i.c:312:10: error: call to undeclared function 'dev_err_probe'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
312 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
| ^
drivers/pwm/pwm-sun20i.c:312:29: error: incomplete definition of type 'struct platform_device'
312 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:315:52: error: incomplete definition of type 'struct platform_device'
315 | sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:317:29: error: incomplete definition of type 'struct platform_device'
317 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:320:52: error: incomplete definition of type 'struct platform_device'
320 | sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:322:29: error: incomplete definition of type 'struct platform_device'
322 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:325:59: error: incomplete definition of type 'struct platform_device'
325 | sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:327:29: error: incomplete definition of type 'struct platform_device'
327 | return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:330:33: error: incomplete definition of type 'struct platform_device'
330 | ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:341:29: error: incomplete definition of type 'struct platform_device'
341 | return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:343:31: error: incomplete definition of type 'struct platform_device'
343 | sun20i_chip->chip.dev = &pdev->dev;
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
drivers/pwm/pwm-sun20i.c:351:29: error: incomplete definition of type 'struct platform_device'
351 | return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
| ~~~~^
drivers/pwm/pwm-sun20i.c:297:36: note: forward declaration of 'struct platform_device'
297 | static int sun20i_pwm_probe(struct platform_device *pdev)
| ^
>> drivers/pwm/pwm-sun20i.c:354:2: error: call to undeclared function 'platform_set_drvdata'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
354 | platform_set_drvdata(pdev, sun20i_chip);
| ^
drivers/pwm/pwm-sun20i.c:359:38: warning: declaration of 'struct platform_device' will not be visible outside of this function [-Wvisibility]
359 | static void sun20i_pwm_remove(struct platform_device *pdev)
| ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
8 warnings and 20 errors generated.
vim +288 drivers/pwm/pwm-sun20i.c
284
285 static const struct pwm_ops sun20i_pwm_ops = {
286 .get_state = sun20i_pwm_get_state,
287 .apply = sun20i_pwm_apply,
> 288 .owner = THIS_MODULE,
289 };
290
291 static const struct of_device_id sun20i_pwm_dt_ids[] = {
292 { .compatible = "allwinner,sun20i-d1-pwm" },
293 { },
294 };
295 MODULE_DEVICE_TABLE(of, sun20i_pwm_dt_ids);
296
> 297 static int sun20i_pwm_probe(struct platform_device *pdev)
298 {
299 struct sun20i_pwm_chip *sun20i_chip;
300 int ret;
301
> 302 sun20i_chip = devm_kzalloc(&pdev->dev, sizeof(*sun20i_chip), GFP_KERNEL);
303 if (!sun20i_chip)
304 return -ENOMEM;
305
> 306 sun20i_chip->base = devm_platform_ioremap_resource(pdev, 0);
307 if (IS_ERR(sun20i_chip->base))
308 return PTR_ERR(sun20i_chip->base);
309
310 sun20i_chip->clk_bus = devm_clk_get_enabled(&pdev->dev, "bus");
311 if (IS_ERR(sun20i_chip->clk_bus))
> 312 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_bus),
313 "failed to get bus clock\n");
314
315 sun20i_chip->clk_hosc = devm_clk_get_enabled(&pdev->dev, "hosc");
316 if (IS_ERR(sun20i_chip->clk_hosc))
317 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_hosc),
318 "failed to get hosc clock\n");
319
320 sun20i_chip->clk_apb0 = devm_clk_get_enabled(&pdev->dev, "apb0");
321 if (IS_ERR(sun20i_chip->clk_apb0))
322 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->clk_apb0),
323 "failed to get apb0 clock\n");
324
325 sun20i_chip->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
326 if (IS_ERR(sun20i_chip->rst))
327 return dev_err_probe(&pdev->dev, PTR_ERR(sun20i_chip->rst),
328 "failed to get bus reset\n");
329
330 ret = of_property_read_u32(pdev->dev.of_node, "allwinner,pwm-channels",
331 &sun20i_chip->chip.npwm);
332 if (ret)
333 sun20i_chip->chip.npwm = 8;
334
335 if (sun20i_chip->chip.npwm > 16)
336 sun20i_chip->chip.npwm = 16;
337
338 /* Deassert reset */
339 ret = reset_control_deassert(sun20i_chip->rst);
340 if (ret)
341 return dev_err_probe(&pdev->dev, ret, "failed to deassert reset\n");
342
343 sun20i_chip->chip.dev = &pdev->dev;
344 sun20i_chip->chip.ops = &sun20i_pwm_ops;
345
346 mutex_init(&sun20i_chip->mutex);
347
348 ret = pwmchip_add(&sun20i_chip->chip);
349 if (ret < 0) {
350 reset_control_assert(sun20i_chip->rst);
351 return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
352 }
353
> 354 platform_set_drvdata(pdev, sun20i_chip);
355
356 return 0;
357 }
358
--
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^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2024-01-26 0:38 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-01-25 7:19 [PATCH v7 0/3] Add support for Allwinner PWM on D1/T113s/R329 SoCs Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller Aleksandr Shubin
2024-01-25 7:19 ` [PATCH v7 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
2024-01-25 15:11 ` kernel test robot
2024-01-25 23:13 ` kernel test robot
2024-01-26 0:38 ` kernel test robot
2024-01-25 7:19 ` [PATCH v7 3/3] riscv: dts: allwinner: d1: Add pwm node Aleksandr Shubin
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