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-rw-r--r--drivers/gpio/gpiolib.c13
-rw-r--r--drivers/gpu/drm/i915/intel_bios.h7
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h4
-rw-r--r--drivers/gpu/drm/i915/intel_dsi.c37
-rw-r--r--drivers/gpu/drm/i915/intel_dsi.h3
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c94
-rw-r--r--drivers/mfd/Kconfig1
-rw-r--r--drivers/mfd/intel_soc_pmic_core.c29
-rw-r--r--drivers/mfd/intel_soc_pmic_crc.c3
-rw-r--r--drivers/pwm/Kconfig7
-rw-r--r--drivers/pwm/Makefile1
-rw-r--r--drivers/pwm/pwm-crc.c143
12 files changed, 335 insertions, 7 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index bf4bd1d120c3..f25dc880b007 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1672,6 +1672,19 @@ void gpiod_add_lookup_table(struct gpiod_lookup_table *table)
mutex_unlock(&gpio_lookup_lock);
}
+/**
+ * gpiod_remove_lookup_table() - unregister GPIO device consumers
+ * @table: table of consumers to unregister
+ */
+void gpiod_remove_lookup_table(struct gpiod_lookup_table *table)
+{
+ mutex_lock(&gpio_lookup_lock);
+
+ list_del(&table->list);
+
+ mutex_unlock(&gpio_lookup_lock);
+}
+
static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags)
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index af0b47652752..f7ad6a585129 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -778,6 +778,13 @@ int intel_parse_bios(struct drm_device *dev);
#define MIPI_DSI_UNDEFINED_PANEL_ID 0
#define MIPI_DSI_GENERIC_PANEL_ID 1
+/*
+ * PMIC vs SoC Backlight support specified in pwm_blc
+ * field in mipi_config block below.
+*/
+#define PPS_BLC_PMIC 0
+#define PPS_BLC_SOC 1
+
struct mipi_config {
u16 panel_id;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3b00d00c0bc0..47cef0e6c79c 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -177,6 +177,10 @@ struct intel_panel {
bool enabled;
bool combination_mode; /* gen 2/4 only */
bool active_low_pwm;
+
+ /* PWM chip */
+ struct pwm_device *pwm;
+
struct backlight_device *device;
} backlight;
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index f4438eb5b458..18dd7d7360a0 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -31,6 +31,7 @@
#include <drm/drm_panel.h>
#include <drm/drm_mipi_dsi.h>
#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
#include "i915_drv.h"
#include "intel_drv.h"
#include "intel_dsi.h"
@@ -396,6 +397,8 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
intel_dsi_port_enable(encoder);
}
+
+ intel_panel_enable_backlight(intel_dsi->attached_connector);
}
static void intel_dsi_pre_enable(struct intel_encoder *encoder)
@@ -410,6 +413,12 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder)
DRM_DEBUG_KMS("\n");
+ /* Panel Enable over CRC PMIC */
+ if (intel_dsi->gpio_panel)
+ gpiod_set_value_cansleep(intel_dsi->gpio_panel, 1);
+
+ msleep(intel_dsi->panel_on_delay);
+
/* Disable DPOunit clock gating, can stall pipe
* and we need DPLL REFA always enabled */
tmp = I915_READ(DPLL(pipe));
@@ -427,8 +436,6 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder)
/* put device in ready state */
intel_dsi_device_ready(encoder);
- msleep(intel_dsi->panel_on_delay);
-
drm_panel_prepare(intel_dsi->panel);
for_each_dsi_port(port, intel_dsi->ports)
@@ -456,6 +463,8 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder)
DRM_DEBUG_KMS("\n");
+ intel_panel_disable_backlight(intel_dsi->attached_connector);
+
if (is_vid_mode(intel_dsi)) {
/* Send Shutdown command to the panel in LP mode */
for_each_dsi_port(port, intel_dsi->ports)
@@ -571,6 +580,10 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder)
msleep(intel_dsi->panel_off_delay);
msleep(intel_dsi->panel_pwr_cycle_delay);
+
+ /* Panel Disable over CRC PMIC */
+ if (intel_dsi->gpio_panel)
+ gpiod_set_value_cansleep(intel_dsi->gpio_panel, 0);
}
static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
@@ -950,6 +963,11 @@ static void intel_dsi_encoder_destroy(struct drm_encoder *encoder)
/* XXX: Logically this call belongs in the panel driver. */
drm_panel_remove(intel_dsi->panel);
}
+
+ /* dispose of the gpios */
+ if (intel_dsi->gpio_panel)
+ gpiod_put(intel_dsi->gpio_panel);
+
intel_encoder_destroy(encoder);
}
@@ -1065,6 +1083,20 @@ void intel_dsi_init(struct drm_device *dev)
goto err;
}
+ /*
+ * In case of BYT with CRC PMIC, we need to use GPIO for
+ * Panel control.
+ */
+ if (dev_priv->vbt.dsi.config->pwm_blc == PPS_BLC_PMIC) {
+ intel_dsi->gpio_panel =
+ gpiod_get(dev->dev, "panel", GPIOD_OUT_HIGH);
+
+ if (IS_ERR(intel_dsi->gpio_panel)) {
+ DRM_ERROR("Failed to own gpio for panel control\n");
+ intel_dsi->gpio_panel = NULL;
+ }
+ }
+
intel_encoder->type = INTEL_OUTPUT_DSI;
intel_encoder->cloneable = 0;
drm_connector_init(dev, connector, &intel_dsi_connector_funcs,
@@ -1098,6 +1130,7 @@ void intel_dsi_init(struct drm_device *dev)
}
intel_panel_init(&intel_connector->panel, fixed_mode, NULL);
+ intel_panel_setup_backlight(connector, INVALID_PIPE);
return;
diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
index 2784ac442368..42a68593e32a 100644
--- a/drivers/gpu/drm/i915/intel_dsi.h
+++ b/drivers/gpu/drm/i915/intel_dsi.h
@@ -42,6 +42,9 @@ struct intel_dsi {
struct drm_panel *panel;
struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS];
+ /* GPIO Desc for CRC based Panel control */
+ struct gpio_desc *gpio_panel;
+
struct intel_connector *attached_connector;
/* bit mask of ports being driven */
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 55aad2322e10..e2ab3f6ed022 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -32,8 +32,11 @@
#include <linux/kernel.h>
#include <linux/moduleparam.h>
+#include <linux/pwm.h>
#include "intel_drv.h"
+#define CRC_PMIC_PWM_PERIOD_NS 21333
+
void
intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
struct drm_display_mode *adjusted_mode)
@@ -544,6 +547,15 @@ static u32 bxt_get_backlight(struct intel_connector *connector)
return I915_READ(BXT_BLC_PWM_DUTY1);
}
+static u32 pwm_get_backlight(struct intel_connector *connector)
+{
+ struct intel_panel *panel = &connector->panel;
+ int duty_ns;
+
+ duty_ns = pwm_get_duty_cycle(panel->backlight.pwm);
+ return DIV_ROUND_UP(duty_ns * 100, CRC_PMIC_PWM_PERIOD_NS);
+}
+
static u32 intel_panel_get_backlight(struct intel_connector *connector)
{
struct drm_device *dev = connector->base.dev;
@@ -632,6 +644,14 @@ static void bxt_set_backlight(struct intel_connector *connector, u32 level)
I915_WRITE(BXT_BLC_PWM_DUTY1, level);
}
+static void pwm_set_backlight(struct intel_connector *connector, u32 level)
+{
+ struct intel_panel *panel = &connector->panel;
+ int duty_ns = DIV_ROUND_UP(level * CRC_PMIC_PWM_PERIOD_NS, 100);
+
+ pwm_config(panel->backlight.pwm, duty_ns, CRC_PMIC_PWM_PERIOD_NS);
+}
+
static void
intel_panel_actually_set_backlight(struct intel_connector *connector, u32 level)
{
@@ -769,6 +789,16 @@ static void bxt_disable_backlight(struct intel_connector *connector)
I915_WRITE(BXT_BLC_PWM_CTL1, tmp & ~BXT_BLC_PWM_ENABLE);
}
+static void pwm_disable_backlight(struct intel_connector *connector)
+{
+ struct intel_panel *panel = &connector->panel;
+
+ /* Disable the backlight */
+ pwm_config(panel->backlight.pwm, 0, CRC_PMIC_PWM_PERIOD_NS);
+ usleep_range(2000, 3000);
+ pwm_disable(panel->backlight.pwm);
+}
+
void intel_panel_disable_backlight(struct intel_connector *connector)
{
struct drm_device *dev = connector->base.dev;
@@ -1010,6 +1040,14 @@ static void bxt_enable_backlight(struct intel_connector *connector)
I915_WRITE(BXT_BLC_PWM_CTL1, pwm_ctl | BXT_BLC_PWM_ENABLE);
}
+static void pwm_enable_backlight(struct intel_connector *connector)
+{
+ struct intel_panel *panel = &connector->panel;
+
+ pwm_enable(panel->backlight.pwm);
+ intel_panel_actually_set_backlight(connector, panel->backlight.level);
+}
+
void intel_panel_enable_backlight(struct intel_connector *connector)
{
struct drm_device *dev = connector->base.dev;
@@ -1386,6 +1424,40 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
return 0;
}
+static int pwm_setup_backlight(struct intel_connector *connector,
+ enum pipe pipe)
+{
+ struct drm_device *dev = connector->base.dev;
+ struct intel_panel *panel = &connector->panel;
+ int retval;
+
+ /* Get the PWM chip for backlight control */
+ panel->backlight.pwm = pwm_get(dev->dev, "pwm_backlight");
+ if (IS_ERR(panel->backlight.pwm)) {
+ DRM_ERROR("Failed to own the pwm chip\n");
+ panel->backlight.pwm = NULL;
+ return -ENODEV;
+ }
+
+ retval = pwm_config(panel->backlight.pwm, CRC_PMIC_PWM_PERIOD_NS,
+ CRC_PMIC_PWM_PERIOD_NS);
+ if (retval < 0) {
+ DRM_ERROR("Failed to configure the pwm chip\n");
+ pwm_put(panel->backlight.pwm);
+ panel->backlight.pwm = NULL;
+ return retval;
+ }
+
+ panel->backlight.min = 0; /* 0% */
+ panel->backlight.max = 100; /* 100% */
+ panel->backlight.level = DIV_ROUND_UP(
+ pwm_get_duty_cycle(panel->backlight.pwm) * 100,
+ CRC_PMIC_PWM_PERIOD_NS);
+ panel->backlight.enabled = panel->backlight.level != 0;
+
+ return 0;
+}
+
int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe)
{
struct drm_device *dev = connector->dev;
@@ -1429,6 +1501,10 @@ void intel_panel_destroy_backlight(struct drm_connector *connector)
struct intel_connector *intel_connector = to_intel_connector(connector);
struct intel_panel *panel = &intel_connector->panel;
+ /* dispose of the pwm */
+ if (panel->backlight.pwm)
+ pwm_put(panel->backlight.pwm);
+
panel->backlight.present = false;
}
@@ -1456,11 +1532,19 @@ void intel_panel_init_backlight_funcs(struct drm_device *dev)
dev_priv->display.set_backlight = pch_set_backlight;
dev_priv->display.get_backlight = pch_get_backlight;
} else if (IS_VALLEYVIEW(dev)) {
- dev_priv->display.setup_backlight = vlv_setup_backlight;
- dev_priv->display.enable_backlight = vlv_enable_backlight;
- dev_priv->display.disable_backlight = vlv_disable_backlight;
- dev_priv->display.set_backlight = vlv_set_backlight;
- dev_priv->display.get_backlight = vlv_get_backlight;
+ if (dev_priv->vbt.has_mipi) {
+ dev_priv->display.setup_backlight = pwm_setup_backlight;
+ dev_priv->display.enable_backlight = pwm_enable_backlight;
+ dev_priv->display.disable_backlight = pwm_disable_backlight;
+ dev_priv->display.set_backlight = pwm_set_backlight;
+ dev_priv->display.get_backlight = pwm_get_backlight;
+ } else {
+ dev_priv->display.setup_backlight = vlv_setup_backlight;
+ dev_priv->display.enable_backlight = vlv_enable_backlight;
+ dev_priv->display.disable_backlight = vlv_disable_backlight;
+ dev_priv->display.set_backlight = vlv_set_backlight;
+ dev_priv->display.get_backlight = vlv_get_backlight;
+ }
} else if (IS_GEN4(dev)) {
dev_priv->display.setup_backlight = i965_setup_backlight;
dev_priv->display.enable_backlight = i965_enable_backlight;
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 653815950aa2..379a420245ea 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -318,6 +318,7 @@ config LPC_SCH
config INTEL_SOC_PMIC
bool "Support for Intel Atom SoC PMIC"
+ depends on GPIOLIB
depends on I2C=y
select MFD_CORE
select REGMAP_I2C
diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c
index 7b50b6b208a5..a00ddd93dc15 100644
--- a/drivers/mfd/intel_soc_pmic_core.c
+++ b/drivers/mfd/intel_soc_pmic_core.c
@@ -24,8 +24,25 @@
#include <linux/acpi.h>
#include <linux/regmap.h>
#include <linux/mfd/intel_soc_pmic.h>
+#include <linux/gpio/machine.h>
+#include <linux/pwm.h>
#include "intel_soc_pmic_core.h"
+/* Lookup table for the Panel Enable/Disable line as GPIO signals */
+static struct gpiod_lookup_table panel_gpio_table = {
+ /* Intel GFX is consumer */
+ .dev_id = "0000:00:02.0",
+ .table = {
+ /* Panel EN/DISABLE */
+ GPIO_LOOKUP("gpio_crystalcove", 94, "panel", GPIO_ACTIVE_HIGH),
+ },
+};
+
+/* PWM consumed by the Intel GFX */
+static struct pwm_lookup crc_pwm_lookup[] = {
+ PWM_LOOKUP("crystal_cove_pwm", 0, "0000:00:02.0", "pwm_backlight", 0, PWM_POLARITY_NORMAL),
+};
+
static int intel_soc_pmic_find_gpio_irq(struct device *dev)
{
struct gpio_desc *desc;
@@ -85,6 +102,12 @@ static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
if (ret)
dev_warn(dev, "Can't enable IRQ as wake source: %d\n", ret);
+ /* Add lookup table binding for Panel Control to the GPIO Chip */
+ gpiod_add_lookup_table(&panel_gpio_table);
+
+ /* Add lookup table for crc-pwm */
+ pwm_add_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
+
ret = mfd_add_devices(dev, -1, config->cell_dev,
config->n_cell_devs, NULL, 0,
regmap_irq_get_domain(pmic->irq_chip_data));
@@ -104,6 +127,12 @@ static int intel_soc_pmic_i2c_remove(struct i2c_client *i2c)
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
+ /* Remove lookup table for Panel Control from the GPIO Chip */
+ gpiod_remove_lookup_table(&panel_gpio_table);
+
+ /* remove crc-pwm lookup table */
+ pwm_remove_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
+
mfd_remove_devices(&i2c->dev);
return 0;
diff --git a/drivers/mfd/intel_soc_pmic_crc.c b/drivers/mfd/intel_soc_pmic_crc.c
index 7436075e8983..4a7494872da2 100644
--- a/drivers/mfd/intel_soc_pmic_crc.c
+++ b/drivers/mfd/intel_soc_pmic_crc.c
@@ -109,6 +109,9 @@ static struct mfd_cell crystal_cove_dev[] = {
{
.name = "crystal_cove_pmic",
},
+ {
+ .name = "crystal_cove_pwm",
+ },
};
static const struct regmap_config crystal_cove_regmap_config = {
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index b1541f40fd8d..948d9abd27f1 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -111,6 +111,13 @@ config PWM_CLPS711X
To compile this driver as a module, choose M here: the module
will be called pwm-clps711x.
+config PWM_CRC
+ bool "Intel Crystalcove (CRC) PWM support"
+ depends on X86 && INTEL_SOC_PMIC
+ help
+ Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
+ control.
+
config PWM_EP93XX
tristate "Cirrus Logic EP93xx PWM support"
depends on ARCH_EP93XX
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index ec50eb5b5a8f..d186f35a6538 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_PWM_BCM_KONA) += pwm-bcm-kona.o
obj-$(CONFIG_PWM_BCM2835) += pwm-bcm2835.o
obj-$(CONFIG_PWM_BFIN) += pwm-bfin.o
obj-$(CONFIG_PWM_CLPS711X) += pwm-clps711x.o
+obj-$(CONFIG_PWM_CRC) += pwm-crc.o
obj-$(CONFIG_PWM_EP93XX) += pwm-ep93xx.o
obj-$(CONFIG_PWM_FSL_FTM) += pwm-fsl-ftm.o
obj-$(CONFIG_PWM_IMG) += pwm-img.o
diff --git a/drivers/pwm/pwm-crc.c b/drivers/pwm/pwm-crc.c
new file mode 100644
index 000000000000..7101c7020bf4
--- /dev/null
+++ b/drivers/pwm/pwm-crc.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2015 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Author: Shobhit Kumar <shobhit.kumar@intel.com>
+ */
+
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/mfd/intel_soc_pmic.h>
+#include <linux/pwm.h>
+
+#define PWM0_CLK_DIV 0x4B
+#define PWM_OUTPUT_ENABLE BIT(7)
+#define PWM_DIV_CLK_0 0x00 /* DIVIDECLK = BASECLK */
+#define PWM_DIV_CLK_100 0x63 /* DIVIDECLK = BASECLK/100 */
+#define PWM_DIV_CLK_128 0x7F /* DIVIDECLK = BASECLK/128 */
+
+#define PWM0_DUTY_CYCLE 0x4E
+#define BACKLIGHT_EN 0x51
+
+#define PWM_MAX_LEVEL 0xFF
+
+#define PWM_BASE_CLK 6000000 /* 6 MHz */
+#define PWM_MAX_PERIOD_NS 21333 /* 46.875KHz */
+
+/**
+ * struct crystalcove_pwm - Crystal Cove PWM controller
+ * @chip: the abstract pwm_chip structure.
+ * @regmap: the regmap from the parent device.
+ */
+struct crystalcove_pwm {
+ struct pwm_chip chip;
+ struct regmap *regmap;
+};
+
+static inline struct crystalcove_pwm *to_crc_pwm(struct pwm_chip *pc)
+{
+ return container_of(pc, struct crystalcove_pwm, chip);
+}
+
+static int crc_pwm_enable(struct pwm_chip *c, struct pwm_device *pwm)
+{
+ struct crystalcove_pwm *crc_pwm = to_crc_pwm(c);
+
+ regmap_write(crc_pwm->regmap, BACKLIGHT_EN, 1);
+
+ return 0;
+}
+
+static void crc_pwm_disable(struct pwm_chip *c, struct pwm_device *pwm)
+{
+ struct crystalcove_pwm *crc_pwm = to_crc_pwm(c);
+
+ regmap_write(crc_pwm->regmap, BACKLIGHT_EN, 0);
+}
+
+static int crc_pwm_config(struct pwm_chip *c, struct pwm_device *pwm,
+ int duty_ns, int period_ns)
+{
+ struct crystalcove_pwm *crc_pwm = to_crc_pwm(c);
+ struct device *dev = crc_pwm->chip.dev;
+ int level;
+
+ if (period_ns > PWM_MAX_PERIOD_NS) {
+ dev_err(dev, "un-supported period_ns\n");
+ return -EINVAL;
+ }
+
+ if (pwm->period != period_ns) {
+ int clk_div;
+
+ /* changing the clk divisor, need to disable fisrt */
+ crc_pwm_disable(c, pwm);
+ clk_div = PWM_BASE_CLK * period_ns / NSEC_PER_SEC;
+
+ regmap_write(crc_pwm->regmap, PWM0_CLK_DIV,
+ clk_div | PWM_OUTPUT_ENABLE);
+
+ /* enable back */
+ crc_pwm_enable(c, pwm);
+ }
+
+ /* change the pwm duty cycle */
+ level = duty_ns * PWM_MAX_LEVEL / period_ns;
+ regmap_write(crc_pwm->regmap, PWM0_DUTY_CYCLE, level);
+
+ return 0;
+}
+
+static const struct pwm_ops crc_pwm_ops = {
+ .config = crc_pwm_config,
+ .enable = crc_pwm_enable,
+ .disable = crc_pwm_disable,
+};
+
+static int crystalcove_pwm_probe(struct platform_device *pdev)
+{
+ struct crystalcove_pwm *pwm;
+ struct device *dev = pdev->dev.parent;
+ struct intel_soc_pmic *pmic = dev_get_drvdata(dev);
+
+ pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
+ if (!pwm)
+ return -ENOMEM;
+
+ pwm->chip.dev = &pdev->dev;
+ pwm->chip.ops = &crc_pwm_ops;
+ pwm->chip.base = -1;
+ pwm->chip.npwm = 1;
+
+ /* get the PMIC regmap */
+ pwm->regmap = pmic->regmap;
+
+ platform_set_drvdata(pdev, pwm);
+
+ return pwmchip_add(&pwm->chip);
+}
+
+static int crystalcove_pwm_remove(struct platform_device *pdev)
+{
+ struct crystalcove_pwm *pwm = platform_get_drvdata(pdev);
+
+ return pwmchip_remove(&pwm->chip);
+}
+
+static struct platform_driver crystalcove_pwm_driver = {
+ .probe = crystalcove_pwm_probe,
+ .remove = crystalcove_pwm_remove,
+ .driver = {
+ .name = "crystal_cove_pwm",
+ },
+};
+
+builtin_platform_driver(crystalcove_pwm_driver);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 05:54:47 +0300