kernel/drivers/video/fbdev/ssd1307fb.c, branch linux-6.9.y

pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()

2023-12-20T15:07:04Z

In order to introduce a pwm api which can be used from atomic context, we will need two functions for applying pwm changes: int pwm_apply_might_sleep(struct pwm *, struct pwm_state *); int pwm_apply_atomic(struct pwm *, struct pwm_state *); This commit just deals with renaming pwm_apply_state(), a following commit will introduce the pwm_apply_atomic() function. Acked-by: Uwe Kleine-König Acked-by: Guenter Roeck Acked-by: Mark Brown Acked-by: Dmitry Torokhov # for input Acked-by: Hans de Goede Acked-by: Jani Nikula Acked-by: Lee Jones Signed-off-by: Sean Young Signed-off-by: Thierry Reding

fbdev: ssd1307fb: Use bool for ssd1307fb_deviceinfo flags

2023-08-31T22:29:34Z

The .need_pwm and .need_chargepump fields in struct ssd1307fb_deviceinfo are flags that can have only two possible values: 0 and 1. Reduce kernel size by changing their types from int to bool. Signed-off-by: Geert Uytterhoeven Acked-by: Javier Martinez Canillas Signed-off-by: Helge Deller

BackMerge tag 'v6.5-rc7' into drm-next

2023-08-23T21:26:06Z

Linux 6.5-rc7 This is needed for the CI stuff and the msm pull has fixes in it. Signed-off-by: Dave Airlie

fbdev: Align deferred I/O with naming of helpers

2023-07-31T18:07:24Z

Deferred-I/O generator macros generate callbacks for struct fb_ops that operate on memory ranges in I/O address space or system address space. Rename the macros to use the _IOMEM_ and _SYSMEM_ infixes of their underlying helpers. Adapt all users. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230729193157.15446-5-tzimmermann@suse.de

fbdev: ssd1307fb: Print the PWM's label instead of its number

2023-07-31T12:54:08Z

struct pwm_device::pwm is a write-only variable in the pwm core and used nowhere apart from this and another dev_dbg. So it isn't useful to identify the used PWM. Emit the PWM's label instead in the debug message. Signed-off-by: Uwe Kleine-König Reviewed-by: Javier Martinez Canillas Signed-off-by: Helge Deller

fbdev/ssd1307fb: Generate deferred I/O ops

2023-07-08T19:03:26Z

Use the existing generator macros to create deferred-I/O helpers for ssd1307fb and set them in the fb_ops structure. Functions for damage handling on memory ranges and areas are provided by the driver. Ssd1307fb's implementation of fb_write writes to system memory, so the generated code can use the respective helper internally. This also fixes a long-standing bug where fb_write returned an errno code instead of the number of written bytes. See the commit message of commit 921b7383f348 ("fbdev: Return number of bytes read or written") for more details. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-9-tzimmermann@suse.de

Backmerge tag 'v6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next

2023-06-19T06:01:25Z

Linux 6.4-rc7 Need this to pull in the msm work. Signed-off-by: Dave Airlie

fbdev: matroxfb ssd1307fb: Switch i2c drivers back to use .probe()

2023-05-27T06:18:18Z

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König Signed-off-by: Helge Deller

fbdev: Validate info->screen_{base, buffer} in fb_ops implementations

2023-05-08T13:28:34Z

Push the test for info->screen_base from fb_read() and fb_write() into the implementations of struct fb_ops.{fb_read,fb_write}. In cases where the driver operates on info->screen_buffer, test this field instead. While bothi fields, screen_base and screen_buffer, are stored in the same location, they refer to different address spaces. For correctness, we want to test each field in exactly the code that uses it. v2: * also test screen_base in pvr2fb (Geert) * also test screen_buffer in ivtvfb, arcfb, broadsheetfb, hecubafb, metronomefb and ssd1307fb (Geert) * give a rational for the change (Geert) Signed-off-by: Thomas Zimmermann Tested-by: Sui Jingfeng Reviewed-by: Javier Martinez Canillas Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230428122452.4856-18-tzimmermann@suse.de

fbdev: ssd1307fb: Drop duplicate NULL checks for PWM APIs

2022-12-14T19:01:48Z

pwm_disable() and pwm_put() are NULL-aware, no need to duplicate the check in the caller. Signed-off-by: Andy Shevchenko Signed-off-by: Helge Deller