user/sven/linux.git/drivers/gpu/drm/tilcdc, branch v4.18.8

drm/tilcdc: Fix setting clock divider for omap-l138

2018-05-09T16:55:18Z

This fixes setting the clock divider on the TI OMAP-L138 LCDK board. The clock drivers for OMAP-L138 are being covernted to the common clock framework. When this happens, clk_set_rate() will no longer return an error. However, on this SoC, the clock rate cannot actually be changed because the clock has to maintain a fixed ratio to the ARM clock. So after attempting to set the clock rate, we need to check to see if the new rate is actually close enough. If not, then follow the previous error path to adjust the divider in LCDC IP block to compensate for not being able to change the parent clock rate. Tested working on a TI OMAP-L138 LCDK board. Signed-off-by: David Lechner Signed-off-by: Jyri Sarha

drm/tilcdc: tilcdc_panel: Rename device from "panel" to "tilcdc-panel"

2018-02-28T09:48:25Z

Rename the bundled tilcdc_panel driver from just "panel" to "tilcdc-panel" to avoid noisy error messages from the driver trying to probe all device nodes named "panel". Signed-off-by: Jyri Sarha Reviewed-by: Tomi Valkeinen

drm/tilcdc: Add support for drm panels

2018-02-28T09:48:16Z

Add support for drm panels to tilcdc. Adding the support on top of the existing bridge support needs only couple of lines of code when using using the drm panel bridge helpers. Signed-off-by: Jyri Sarha Reviewed-by: Tomi Valkeinen

drm/tilcdc: panel: Use common error handling code in of_get_panel_info()

2018-02-28T09:25:36Z

Add a jump target so that a bit of exception handling can be better reused at the end of this function. Signed-off-by: Markus Elfring Signed-off-by: Jyri Sarha

drm/tilcdc: Delete an error message for a failed memory allocation in seven functions

2018-02-28T09:25:35Z

Omit an extra message for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Jyri Sarha

Merge tag 'tilcdc-4.16' of https://github.com/jsarha/linux into drm-next

2017-12-21T01:10:20Z

drm/tilcdc changes for 4.16 * tag 'tilcdc-4.16' of https://github.com/jsarha/linux: drm/tilcdc: make tilcdc_mode_hvtotal() static drm/tilcdc: Remove drm_framebuffer_get() and *_put() calls drm/tilcdc: ensure nonatomic iowrite64 is not used

drm/tilcdc: make tilcdc_mode_hvtotal() static

2017-12-18T20:29:21Z

The function tilcdc_mode_hvtotal is local to the source and does not need to be in global scope, so make it static. drivers/gpu/drm/tilcdc/tilcdc_crtc.c:297:6: warning: no previous prototype for 'tilcdc_mode_hvtotal' [-Wmissing-prototypes] uint tilcdc_mode_hvtotal(const struct drm_display_mode *mode) Signed-off-by: Xiongwei Song Signed-off-by: Jyri Sarha

drm/tilcdc: Remove drm_framebuffer_get() and *_put() calls

2017-12-18T11:24:30Z

The drm_framebuffer_get() and drm_framebuffer_put() calls in the tilcdc driver are obsolete. The drm atomic modesetting core should take care of holding the references while the atomic state object is in use. The old state is deleted when a commit of a new one is completed after drm_atomic_helper_wait_for_vblanks(). This also fixes an occasional framebuffer leak the old drm_framebuffer_get() and drm_framebuffer_put() code had. Signed-off-by: Jyri Sarha

drm/tilcdc: ensure nonatomic iowrite64 is not used

2017-12-18T11:24:29Z

Add a check to ensure iowrite64 is only used if it is atomic. It was decided in [1] that the tilcdc driver should not be using an atomic operation (so it was left out of this patchset). However, it turns out that through the drm code, a nonatomic header is actually included: include/linux/io-64-nonatomic-lo-hi.h is included from include/drm/drm_os_linux.h:9:0, from include/drm/drmP.h:74, from include/drm/drm_modeset_helper.h:26, from include/drm/drm_atomic_helper.h:33, from drivers/gpu/drm/tilcdc/tilcdc_crtc.c:19: And thus, without this change, this patchset would inadvertantly change the behaviour of the tilcdc driver. [1] lkml.kernel.org/r/CAK8P3a2HhO_zCnsTzq7hmWSz5La5Thu19FWZpun16iMnyyNreQ@mail.gmail.com Signed-off-by: Logan Gunthorpe Reviewed-by: Andy Shevchenko Cc: Jyri Sarha Cc: Arnd Bergmann Cc: Tomi Valkeinen Cc: David Airlie Signed-off-by: Jyri Sarha

drm/tilcdc: Use drm_fb_cma_fbdev_init/fini()

2017-12-08T13:47:42Z

Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on the fact that drm_device holds a pointer to the drm_fb_helper structure. This means that the driver doesn't have to keep track of that. Also use the drm_fb_helper functions directly. Cc: Jyri Sarha Cc: Tomi Valkeinen Signed-off-by: Noralf Trønnes Acked-by: Jyri Sarha Link: https://patchwork.freedesktop.org/patch/msgid/20171115142001.45358-16-noralf@tronnes.org