From 5dbcf319b283276468a52feafefeb5802d87cb8a Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 15 Jun 2014 11:11:10 +0100 Subject: drm/i2c: tda998x: add OF support for finding attached CRTCs Add support to find the attached CRTCs via OF using the newly introduced helper. Signed-off-by: Russell King --- drivers/gpu/drm/i2c/tda998x_drv.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/i2c/tda998x_drv.c') diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index d4762799351d..4dcf47417aee 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) @@ -1515,6 +1516,7 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data) struct i2c_client *client = to_i2c_client(dev); struct drm_device *drm = data; struct tda998x_priv2 *priv; + uint32_t crtcs = 0; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -1523,9 +1525,18 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data) dev_set_drvdata(dev, priv); + if (dev->of_node) + crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); + + /* If no CRTCs were found, fall back to our old behaviour */ + if (crtcs == 0) { + dev_warn(dev, "Falling back to first CRTC\n"); + crtcs = 1 << 0; + } + priv->base.encoder = &priv->encoder; priv->connector.interlace_allowed = 1; - priv->encoder.possible_crtcs = 1 << 0; + priv->encoder.possible_crtcs = crtcs; ret = tda998x_create(client, &priv->base); if (ret) -- cgit v1.2.3-59-g8ed1b From 288ffc73f6e9be6334ca491994cc01110bebfc96 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 7 Dec 2014 20:20:59 +0100 Subject: drm/i2c: tda998x: fix misspelling of current function in string Replace a misspelled function name by %s and then __func__. This was done using Coccinelle, including the use of Levenshtein distance, as proposed by Rasmus Villemoes. Signed-off-by: Julia Lawall Signed-off-by: Russell King --- drivers/gpu/drm/i2c/tda998x_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/i2c/tda998x_drv.c') diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index 4dcf47417aee..d853ab5ba472 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -386,7 +386,7 @@ set_page(struct tda998x_priv *priv, uint16_t reg) }; int ret = i2c_master_send(client, buf, sizeof(buf)); if (ret < 0) { - dev_err(&client->dev, "setpage %04x err %d\n", + dev_err(&client->dev, "%s %04x err %d\n", __func__, reg, ret); return ret; } -- cgit v1.2.3-59-g8ed1b From 07259f8b9fbd30fcef595e872deeea5ffab934ed Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 16 Jan 2015 18:37:43 +0200 Subject: drm/i2c: tda998x: use drm_do_get_edid() Replace the internal EDID read implementation by a call to the new EDID read core function. Signed-off-by: Laurent Pinchart Reviewed-by: Rob Clark Tested-by: Jean-Francois Moine Signed-off-by: Russell King --- drivers/gpu/drm/i2c/tda998x_drv.c | 86 ++++++++------------------------------- 1 file changed, 18 insertions(+), 68 deletions(-) (limited to 'drivers/gpu/drm/i2c/tda998x_drv.c') diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index d853ab5ba472..43d5d91fe880 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -1012,8 +1012,9 @@ tda998x_encoder_detect(struct tda998x_priv *priv) connector_status_disconnected; } -static int read_edid_block(struct tda998x_priv *priv, uint8_t *buf, int blk) +static int read_edid_block(void *data, u8 *buf, unsigned int blk, size_t length) { + struct tda998x_priv *priv = data; uint8_t offset, segptr; int ret, i; @@ -1057,8 +1058,8 @@ static int read_edid_block(struct tda998x_priv *priv, uint8_t *buf, int blk) return -ETIMEDOUT; } - ret = reg_read_range(priv, REG_EDID_DATA_0, buf, EDID_LENGTH); - if (ret != EDID_LENGTH) { + ret = reg_read_range(priv, REG_EDID_DATA_0, buf, length); + if (ret != length) { dev_err(&priv->hdmi->dev, "failed to read edid block %d: %d\n", blk, ret); return ret; @@ -1067,82 +1068,31 @@ static int read_edid_block(struct tda998x_priv *priv, uint8_t *buf, int blk) return 0; } -static uint8_t *do_get_edid(struct tda998x_priv *priv) +static int +tda998x_encoder_get_modes(struct tda998x_priv *priv, + struct drm_connector *connector) { - int j, valid_extensions = 0; - uint8_t *block, *new; - bool print_bad_edid = drm_debug & DRM_UT_KMS; - - if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) - return NULL; + struct edid *edid; + int n; if (priv->rev == TDA19988) reg_clear(priv, REG_TX4, TX4_PD_RAM); - /* base block fetch */ - if (read_edid_block(priv, block, 0)) - goto fail; - - if (!drm_edid_block_valid(block, 0, print_bad_edid)) - goto fail; - - /* if there's no extensions, we're done */ - if (block[0x7e] == 0) - goto done; - - new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL); - if (!new) - goto fail; - block = new; - - for (j = 1; j <= block[0x7e]; j++) { - uint8_t *ext_block = block + (valid_extensions + 1) * EDID_LENGTH; - if (read_edid_block(priv, ext_block, j)) - goto fail; - - if (!drm_edid_block_valid(ext_block, j, print_bad_edid)) - goto fail; + edid = drm_do_get_edid(connector, read_edid_block, priv); - valid_extensions++; - } - - if (valid_extensions != block[0x7e]) { - block[EDID_LENGTH-1] += block[0x7e] - valid_extensions; - block[0x7e] = valid_extensions; - new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL); - if (!new) - goto fail; - block = new; - } - -done: if (priv->rev == TDA19988) reg_set(priv, REG_TX4, TX4_PD_RAM); - return block; - -fail: - if (priv->rev == TDA19988) - reg_set(priv, REG_TX4, TX4_PD_RAM); - dev_warn(&priv->hdmi->dev, "failed to read EDID\n"); - kfree(block); - return NULL; -} - -static int -tda998x_encoder_get_modes(struct tda998x_priv *priv, - struct drm_connector *connector) -{ - struct edid *edid = (struct edid *)do_get_edid(priv); - int n = 0; - - if (edid) { - drm_mode_connector_update_edid_property(connector, edid); - n = drm_add_edid_modes(connector, edid); - priv->is_hdmi_sink = drm_detect_hdmi_monitor(edid); - kfree(edid); + if (!edid) { + dev_warn(&priv->hdmi->dev, "failed to read EDID\n"); + return 0; } + drm_mode_connector_update_edid_property(connector, edid); + n = drm_add_edid_modes(connector, edid); + priv->is_hdmi_sink = drm_detect_hdmi_monitor(edid); + kfree(edid); + return n; } -- cgit v1.2.3-59-g8ed1b