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pwm: Refactor Qualcomm pwm driver to support upstream pwm framework 

Linux 3.10 version includes generic PWM framework support,
therefore update the existing Qualcomm PWM drivers to use the
framework. Rename the qpnp-pwm driver to align with upstream
pwm file nomenclature. Also, revert the pwm header back to linux 3.10.

The changes to the pwm drivers are backward compatible so that they
do not break existing clients. Subsequent patches should include
changes to both PWM drivers and their clients so that usage of
deprecated APIs (i.e. pwm_request) can be removed.

Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
This commit is contained in:
Prasad Sodagudi 2013-01-23 12:57:27 -08:00 committed by Stephen Boyd
parent 2f2e2da130
commit 5f8d9ac84f
9 changed files with 668 additions and 760 deletions
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3
arch/arm/configs/msm8974-perf_defconfig
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@ -437,13 +437,14 @@ CONFIG_SPS=y
CONFIG_USB_BAM=y
CONFIG_SPS_SUPPORT_BAMDMA=y
CONFIG_SPS_SUPPORT_NDP_BAM=y
CONFIG_QPNP_PWM=y
CONFIG_QPNP_POWER_ON=y
CONFIG_QPNP_CLKDIV=y
CONFIG_QPNP_REVID=y
CONFIG_QPNP_COINCELL=y
CONFIG_MSM_IOMMU_V1=y
CONFIG_IOMMU_PGTABLES_L2=y
CONFIG_PWM=y
CONFIG_PWM_QPNP=y
CONFIG_MOBICORE_SUPPORT=m
CONFIG_MOBICORE_API=m
CONFIG_BIF=y

3
arch/arm/configs/msm8974_defconfig
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@ -443,7 +443,6 @@ CONFIG_SPS=y
CONFIG_USB_BAM=y
CONFIG_SPS_SUPPORT_BAMDMA=y
CONFIG_SPS_SUPPORT_NDP_BAM=y
CONFIG_QPNP_PWM=y
CONFIG_QPNP_POWER_ON=y
CONFIG_QPNP_CLKDIV=y
CONFIG_QPNP_REVID=y
@ -451,6 +450,8 @@ CONFIG_QPNP_COINCELL=y
CONFIG_MSM_IOMMU_V1=y
CONFIG_MSM_IOMMU_PMON=y
CONFIG_IOMMU_PGTABLES_L2=y
CONFIG_PWM=y
CONFIG_PWM_QPNP=y
CONFIG_MOBICORE_SUPPORT=m
CONFIG_MOBICORE_API=m
CONFIG_CORESIGHT=y

747
drivers/mfd/pm8xxx-pwm.c
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File diff suppressed because it is too large Load Diff

10
drivers/platform/msm/Kconfig
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@ -46,16 +46,6 @@ config SPS_SUPPORT_NDP_BAM
help
No-Data-Path BAM is used to improve BAM performance.
config QPNP_PWM
depends on SPMI
depends on OF_SPMI
tristate "Qualcomm QPNP LPG/PWM support"
help
This driver supports PWM/LPG devices in Qualcomm PMIC chips which
comply with QPNP. QPNP is a SPMI based PMIC implementation. These
devices support Pulse Width Modulation output with user generated
patterns. They share a lookup table with size of 64 entries.
config QPNP_POWER_ON
tristate "QPNP PMIC POWER-ON Driver"
depends on OF_SPMI && SPMI && MSM_QPNP_INT

1
drivers/platform/msm/Makefile
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@ -9,7 +9,6 @@ obj-$(CONFIG_MSM_SSBI) += ssbi.o
obj-$(CONFIG_USB_BAM) += usb_bam.o
obj-$(CONFIG_IPA) += ipa/
obj-$(CONFIG_SPS) += sps/
obj-$(CONFIG_QPNP_PWM) += qpnp-pwm.o
obj-$(CONFIG_QPNP_POWER_ON) += qpnp-power-on.o
obj-$(CONFIG_QPNP_VIBRATOR) += qpnp-vibrator.o
obj-$(CONFIG_QPNP_CLKDIV) += qpnp-clkdiv.o

9
drivers/pwm/Kconfig
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@ -201,4 +201,13 @@ config PWM_VT8500
To compile this driver as a module, choose M here: the module
will be called pwm-vt8500.
config PWM_QPNP
depends on SPMI
depends on OF_SPMI
tristate "Qualcomm QPNP LPG/PWM support"
help
This driver supports PWM/LPG devices in Qualcomm PMIC chips which
comply with QPNP. QPNP is a SPMI based PMIC implementation. These
devices support Pulse Width Modulation output with user generated
patterns. They share a lookup table with size of 64 entries.
endif

1
drivers/pwm/Makefile
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@ -17,3 +17,4 @@ obj-$(CONFIG_PWM_TIPWMSS) += pwm-tipwmss.o
obj-$(CONFIG_PWM_TWL) += pwm-twl.o
obj-$(CONFIG_PWM_TWL_LED) += pwm-twl-led.o
obj-$(CONFIG_PWM_VT8500) += pwm-vt8500.o
obj-$(CONFIG_PWM_QPNP) += pwm-qpnp.o

649
drivers/platform/msm/qpnp-pwm.c → drivers/pwm/pwm-qpnp.c
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File diff suppressed because it is too large Load Diff

5
include/linux/pwm.h
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@ -177,16 +177,17 @@ struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *pc,
const struct of_phandle_args *args);
struct pwm_device *pwm_get(struct device *dev, const char *con_id);
struct pwm_device *of_pwm_get(struct device_node *np, const char *con_id);
void pwm_put(struct pwm_device *pwm);
struct pwm_device *devm_pwm_get(struct device *dev, const char *con_id);
struct pwm_device *devm_pwm_get(struct device *dev, const char *consumer);
struct pwm_device *devm_of_pwm_get(struct device *dev, struct device_node *np,
const char *con_id);
void devm_pwm_put(struct device *dev, struct pwm_device *pwm);
bool pwm_can_sleep(struct pwm_device *pwm);
struct pwm_device *pwm_get(struct device *dev, const char *consumer);
#else
static inline int pwm_set_chip_data(struct pwm_device *pwm, void *data)
{