linux-kernel - Re: [PATCH V4 4/8] backlight: qcom-wled: Rename PM8941* to WLED3

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Date:   Mon, 23 Jul 2018 11:25:12 +0530
From:   kgunda@...eaurora.org
To:     Daniel Thompson <daniel.thompson@...aro.org>
Cc:     bjorn.andersson@...aro.org, jingoohan1@...il.com,
        lee.jones@...aro.org, b.zolnierkie@...sung.com,
        dri-devel@...ts.freedesktop.org, jacek.anaszewski@...il.com,
        pavel@....cz, robh+dt@...nel.org, mark.rutland@....com,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH V4 4/8] backlight: qcom-wled: Rename PM8941* to WLED3

On 2018-07-20 18:53, Daniel Thompson wrote:
> On 09/07/18 11:22, Kiran Gunda wrote:
>> Rename the PM8941* references as WLED3 to make the
>> driver generic and have WLED support for other PMICs.
>> 
>> Signed-off-by: Kiran Gunda <kgunda@...eaurora.org>
>> ---
>> Changes from V3:
>> 	- Changed the MODULE_DESCRIPTION
>> 
>>   drivers/video/backlight/qcom-wled.c | 248 
>> ++++++++++++++++++------------------
>>   1 file changed, 125 insertions(+), 123 deletions(-)
>> 
>> diff --git a/drivers/video/backlight/qcom-wled.c 
>> b/drivers/video/backlight/qcom-wled.c
>> index 0b6d219..3cd6e75 100644
>> --- a/drivers/video/backlight/qcom-wled.c
>> +++ b/drivers/video/backlight/qcom-wled.c
>> @@ -18,77 +18,79 @@
>>   #include <linux/regmap.h>
>>     /* From DT binding */
>> -#define PM8941_WLED_DEFAULT_BRIGHTNESS		2048
>> +#define WLED_DEFAULT_BRIGHTNESS				2048
>>   -#define PM8941_WLED_REG_VAL_BASE		0x40
>> -#define  PM8941_WLED_REG_VAL_MAX		0xFFF
>> +#define WLED3_SINK_REG_BRIGHT_MAX			0xFFF
>> +#define WLED3_CTRL_REG_VAL_BASE				0x40
>>   -#define PM8941_WLED_REG_MOD_EN			0x46
>> -#define  PM8941_WLED_REG_MOD_EN_BIT		BIT(7)
>> -#define  PM8941_WLED_REG_MOD_EN_MASK		BIT(7)
>> +/* WLED3 control registers */
>> +#define WLED3_CTRL_REG_MOD_EN				0x46
>> +#define  WLED3_CTRL_REG_MOD_EN_BIT			BIT(7)
>> +#define  WLED3_CTRL_REG_MOD_EN_MASK			BIT(7)
>>   -#define PM8941_WLED_REG_SYNC			0x47
>> -#define  PM8941_WLED_REG_SYNC_MASK		0x07
>> -#define  PM8941_WLED_REG_SYNC_LED1		BIT(0)
>> -#define  PM8941_WLED_REG_SYNC_LED2		BIT(1)
>> -#define  PM8941_WLED_REG_SYNC_LED3		BIT(2)
>> -#define  PM8941_WLED_REG_SYNC_ALL		0x07
>> -#define  PM8941_WLED_REG_SYNC_CLEAR		0x00
>> +#define WLED3_CTRL_REG_FREQ				0x4c
>> +#define  WLED3_CTRL_REG_FREQ_MASK			0x0f
>>   -#define PM8941_WLED_REG_FREQ			0x4c
>> -#define  PM8941_WLED_REG_FREQ_MASK		0x0f
>> +#define WLED3_CTRL_REG_OVP				0x4d
>> +#define  WLED3_CTRL_REG_OVP_MASK			0x03
>>   -#define PM8941_WLED_REG_OVP			0x4d
>> -#define  PM8941_WLED_REG_OVP_MASK		0x03
>> +#define WLED3_CTRL_REG_ILIMIT				0x4e
>> +#define  WLED3_CTRL_REG_ILIMIT_MASK			0x07
>>   -#define PM8941_WLED_REG_BOOST			0x4e
>> -#define  PM8941_WLED_REG_BOOST_MASK		0x07
>> +/* WLED3 sink registers */
>> +#define WLED3_SINK_REG_SYNC				0x47
>> +#define  WLED3_SINK_REG_SYNC_MASK			0x07
>> +#define  WLED3_SINK_REG_SYNC_LED1			BIT(0)
>> +#define  WLED3_SINK_REG_SYNC_LED2			BIT(1)
>> +#define  WLED3_SINK_REG_SYNC_LED3			BIT(2)
>> +#define  WLED3_SINK_REG_SYNC_ALL			0x07
>> +#define  WLED3_SINK_REG_SYNC_CLEAR			0x00
>>   -#define PM8941_WLED_REG_SINK			0x4f
>> -#define  PM8941_WLED_REG_SINK_MASK		0xe0
>> -#define  PM8941_WLED_REG_SINK_SHFT		0x05
>> +#define WLED3_SINK_REG_CURR_SINK			0x4f
>> +#define  WLED3_SINK_REG_CURR_SINK_MASK			0xe0
>> +#define  WLED3_SINK_REG_CURR_SINK_SHFT			0x05
>>   -/* Per-'string' registers below */
>> -#define PM8941_WLED_REG_STR_OFFSET		0x10
>> +/* WLED3 per-'string' registers below */
>> +#define WLED3_SINK_REG_STR_OFFSET			0x10
>>   -#define PM8941_WLED_REG_STR_MOD_EN_BASE		0x60
>> -#define  PM8941_WLED_REG_STR_MOD_MASK		BIT(7)
>> -#define  PM8941_WLED_REG_STR_MOD_EN		BIT(7)
>> +#define WLED3_SINK_REG_STR_MOD_EN_BASE			0x60
>> +#define  WLED3_SINK_REG_STR_MOD_MASK			BIT(7)
>> +#define  WLED3_SINK_REG_STR_MOD_EN			BIT(7)
>>   -#define PM8941_WLED_REG_STR_SCALE_BASE		0x62
>> -#define  PM8941_WLED_REG_STR_SCALE_MASK		0x1f
>> +#define WLED3_SINK_REG_STR_FULL_SCALE_CURR		0x62
>> +#define  WLED3_SINK_REG_STR_FULL_SCALE_CURR_MASK	0x1f
>>   -#define PM8941_WLED_REG_STR_MOD_SRC_BASE	0x63
>> -#define  PM8941_WLED_REG_STR_MOD_SRC_MASK	0x01
>> -#define  PM8941_WLED_REG_STR_MOD_SRC_INT	0x00
>> -#define  PM8941_WLED_REG_STR_MOD_SRC_EXT	0x01
>> +#define WLED3_SINK_REG_STR_MOD_SRC_BASE			0x63
>> +#define  WLED3_SINK_REG_STR_MOD_SRC_MASK		0x01
>> +#define  WLED3_SINK_REG_STR_MOD_SRC_INT			0x00
>> +#define  WLED3_SINK_REG_STR_MOD_SRC_EXT			0x01
>>   -#define PM8941_WLED_REG_STR_CABC_BASE		0x66
>> -#define  PM8941_WLED_REG_STR_CABC_MASK		BIT(7)
>> -#define  PM8941_WLED_REG_STR_CABC_EN		BIT(7)
>> +#define WLED3_SINK_REG_STR_CABC_BASE			0x66
>> +#define  WLED3_SINK_REG_STR_CABC_MASK			BIT(7)
>> +#define  WLED3_SINK_REG_STR_CABC_EN			BIT(7)
>>   -struct pm8941_wled_config {
>> -	u32 i_boost_limit;
>> +struct wled_config {
>> +	u32 boost_i_limit;
>>   	u32 ovp;
>>   	u32 switch_freq;
>>   	u32 num_strings;
>> -	u32 i_limit;
>> +	u32 string_i_limit;
> 
> This patch implements a grand renaming and I have no objections to
> including change for boost_i_limit and string_i_limit in it. I'd
> prefer it to be mentioned in the patch header though.
> 
> Once that is done:
> 
> Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
Thanks Daneil. I will include it in the patch header in next series.