On 2018-08-27 15:39, Pavel Machek wrote:
On Fri 2018-08-24 15:57:44, Kiran Gunda wrote:
Restructure the driver to add the support for new WLED
peripherals.
Signed-off-by: Kiran Gunda <kgunda@xxxxxxxxxxxxxx>
Acked-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
---
Changes from V3:
- This is the new patch after splitting the
"backlight: qcom-wled: Add support for WLED4 peripheral" patch
to seperate the WLED3 specific restructure.
Changes from V4:
- Initialize wled->cfg.enabled_strings to 0,1,2,3.
- Replaced the WLED3 macro with 3.
drivers/video/backlight/qcom-wled.c | 395
++++++++++++++++++++++--------------
1 file changed, 245 insertions(+), 150 deletions(-)
diff --git a/drivers/video/backlight/qcom-wled.c
b/drivers/video/backlight/qcom-wled.c
index 3cd6e75..a746bec 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -15,59 +15,71 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/of_address.h>
#include <linux/regmap.h>
/* From DT binding */
+#define WLED_MAX_STRINGS 4
+
#define WLED_DEFAULT_BRIGHTNESS 2048
-#define WLED3_SINK_REG_BRIGHT_MAX 0xFFF
-#define WLED3_CTRL_REG_VAL_BASE 0x40
+#define WLED_SINK_REG_BRIGHT_MAX 0xFFF
Stop this, no. In previous patch you renamed from ABC123_ to WLED3_,
now you are renaming back to WLED?
Stop messing with the names. I'd actually prefer you to stick with
original driver name, and just add note that this now supports more
hardware.
But yes, _one_ rename is okay. I guess. But renaming it twice in one
series is not acceptable.
ok. I will stop renaming from WLED3 to WLED in this patch. I did it
because these registers
are common for both WLED3 and WLED4 and Bjorn also suggested the same.
Anyways I will stop
this renaming in this patch from WLED3 to WLED.
@@ -365,6 +433,15 @@ static int wled_configure(struct wled *wled,
struct device *dev)
cfg->num_strings = cfg->num_strings + 1;
+ string_len = of_property_count_elems_of_size(dev->of_node,
+ "qcom,enabled-strings",
+ sizeof(u32));
+ if (string_len > 0)
+ rc = of_property_read_u32_array(dev->of_node,
+ "qcom,enabled-strings",
+ wled->cfg.enabled_strings,
+ sizeof(u32));
+
return 0;
}
rc is assigned but never used.
Will address it next series.
Pavel
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