diff options
author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-09-12 09:53:30 +0300 |
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committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-09-12 09:53:30 +0300 |
commit | c900529f3d9161bfde5cca0754f83b4d3c3e0220 (patch) | |
tree | 20736092f827330bbc7b5a162648e03bfc511ab6 /drivers/gpu/drm/tiny | |
parent | dcbad727513d277144aee482b2ffbcd2255c37aa (diff) | |
parent | afaf2b38025ab327c85e218f36d1819e777d4d45 (diff) | |
download | linux-c900529f3d9161bfde5cca0754f83b4d3c3e0220.tar.xz |
Merge drm/drm-fixes into drm-misc-fixes
Forwarding to v6.6-rc1.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'drivers/gpu/drm/tiny')
-rw-r--r-- | drivers/gpu/drm/tiny/ili9225.c | 7 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/ili9486.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/ofdrm.c | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/panel-mipi-dbi.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/repaper.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/simpledrm.c | 6 |
6 files changed, 17 insertions, 11 deletions
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c index 077c6ff5a2e1..4ceb68ffac4b 100644 --- a/drivers/gpu/drm/tiny/ili9225.c +++ b/drivers/gpu/drm/tiny/ili9225.c @@ -316,19 +316,24 @@ static int ili9225_dbi_command(struct mipi_dbi *dbi, u8 *cmd, u8 *par, u32 speed_hz; int ret; + spi_bus_lock(spi->controller); gpiod_set_value_cansleep(dbi->dc, 0); speed_hz = mipi_dbi_spi_cmd_max_speed(spi, 1); ret = mipi_dbi_spi_transfer(spi, speed_hz, 8, cmd, 1); + spi_bus_unlock(spi->controller); if (ret || !num) return ret; if (*cmd == ILI9225_WRITE_DATA_TO_GRAM && !dbi->swap_bytes) bpw = 16; + spi_bus_lock(spi->controller); gpiod_set_value_cansleep(dbi->dc, 1); speed_hz = mipi_dbi_spi_cmd_max_speed(spi, num); + ret = mipi_dbi_spi_transfer(spi, speed_hz, bpw, par, num); + spi_bus_unlock(spi->controller); - return mipi_dbi_spi_transfer(spi, speed_hz, bpw, par, num); + return ret; } static const struct drm_simple_display_pipe_funcs ili9225_pipe_funcs = { diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c index 02265c898816..938bceed5999 100644 --- a/drivers/gpu/drm/tiny/ili9486.c +++ b/drivers/gpu/drm/tiny/ili9486.c @@ -59,9 +59,11 @@ static int waveshare_command(struct mipi_dbi *mipi, u8 *cmd, u8 *par, * before being transferred as 8-bit on the big endian SPI bus. */ buf[0] = cpu_to_be16(*cmd); + spi_bus_lock(spi->controller); gpiod_set_value_cansleep(mipi->dc, 0); speed_hz = mipi_dbi_spi_cmd_max_speed(spi, 2); ret = mipi_dbi_spi_transfer(spi, speed_hz, 8, buf, 2); + spi_bus_unlock(spi->controller); if (ret || !num) goto free; @@ -79,9 +81,11 @@ static int waveshare_command(struct mipi_dbi *mipi, u8 *cmd, u8 *par, if (*cmd == MIPI_DCS_WRITE_MEMORY_START && !mipi->swap_bytes) bpw = 16; + spi_bus_lock(spi->controller); gpiod_set_value_cansleep(mipi->dc, 1); speed_hz = mipi_dbi_spi_cmd_max_speed(spi, num); ret = mipi_dbi_spi_transfer(spi, speed_hz, bpw, data, num); + spi_bus_unlock(spi->controller); free: kfree(buf); diff --git a/drivers/gpu/drm/tiny/ofdrm.c b/drivers/gpu/drm/tiny/ofdrm.c index 76cd7f515bab..2d999a0facde 100644 --- a/drivers/gpu/drm/tiny/ofdrm.c +++ b/drivers/gpu/drm/tiny/ofdrm.c @@ -1369,13 +1369,11 @@ static int ofdrm_probe(struct platform_device *pdev) return 0; } -static int ofdrm_remove(struct platform_device *pdev) +static void ofdrm_remove(struct platform_device *pdev) { struct drm_device *dev = platform_get_drvdata(pdev); drm_dev_unplug(dev); - - return 0; } static const struct of_device_id ofdrm_of_match_display[] = { @@ -1390,7 +1388,7 @@ static struct platform_driver ofdrm_platform_driver = { .of_match_table = ofdrm_of_match_display, }, .probe = ofdrm_probe, - .remove = ofdrm_remove, + .remove_new = ofdrm_remove, }; module_platform_driver(ofdrm_platform_driver); diff --git a/drivers/gpu/drm/tiny/panel-mipi-dbi.c b/drivers/gpu/drm/tiny/panel-mipi-dbi.c index eb9f13f18a02..f80a141fcf36 100644 --- a/drivers/gpu/drm/tiny/panel-mipi-dbi.c +++ b/drivers/gpu/drm/tiny/panel-mipi-dbi.c @@ -307,7 +307,8 @@ static int panel_mipi_dbi_spi_probe(struct spi_device *spi) if (IS_ERR(dbi->reset)) return dev_err_probe(dev, PTR_ERR(dbi->reset), "Failed to get GPIO 'reset'\n"); - dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); + /* Multiple panels can share the "dc" GPIO, but only if they are on the same SPI bus! */ + dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE); if (IS_ERR(dc)) return dev_err_probe(dev, PTR_ERR(dc), "Failed to get GPIO 'dc'\n"); diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index c2677d081a7b..13ae148f59b9 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -533,7 +533,7 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb) DRM_DEBUG("Flushing [FB:%d] st=%ums\n", fb->base.id, epd->factored_stage_time); - buf = kmalloc_array(fb->width, fb->height, GFP_KERNEL); + buf = kmalloc(fb->width * fb->height / 8, GFP_KERNEL); if (!buf) { ret = -ENOMEM; goto out_exit; diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index 25e11ef11c4c..ff86ba1ae1b8 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -888,14 +888,12 @@ static int simpledrm_probe(struct platform_device *pdev) return 0; } -static int simpledrm_remove(struct platform_device *pdev) +static void simpledrm_remove(struct platform_device *pdev) { struct simpledrm_device *sdev = platform_get_drvdata(pdev); struct drm_device *dev = &sdev->dev; drm_dev_unplug(dev); - - return 0; } static const struct of_device_id simpledrm_of_match_table[] = { @@ -910,7 +908,7 @@ static struct platform_driver simpledrm_platform_driver = { .of_match_table = simpledrm_of_match_table, }, .probe = simpledrm_probe, - .remove = simpledrm_remove, + .remove_new = simpledrm_remove, }; module_platform_driver(simpledrm_platform_driver); |