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-rw-r--r--drivers/gpu/drm/tegra/drm.h1
-rw-r--r--drivers/gpu/drm/tegra/dsi.c358
-rw-r--r--drivers/gpu/drm/tegra/output.c5
3 files changed, 195 insertions, 169 deletions
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 95b6aebfaf00..ae3daa436ee6 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -193,7 +193,6 @@ struct tegra_output_ops {
};
enum tegra_output_type {
- TEGRA_OUTPUT_DSI,
TEGRA_OUTPUT_EDP,
};
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 4c0dfe92402a..0b476e1c005a 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -51,7 +51,6 @@ struct tegra_dsi {
struct mipi_dsi_host host;
struct regulator *vdd;
- bool enabled;
unsigned int video_fifo_depth;
unsigned int host_fifo_depth;
@@ -628,46 +627,6 @@ static int tegra_dsi_configure(struct tegra_dsi *dsi, unsigned int pipe,
return 0;
}
-static int tegra_output_dsi_enable(struct tegra_output *output)
-{
- struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
- const struct drm_display_mode *mode = &dc->base.mode;
- struct tegra_dsi *dsi = to_dsi(output);
- u32 value;
- int err;
-
- if (dsi->enabled)
- return 0;
-
- err = tegra_dsi_configure(dsi, dc->pipe, mode);
- if (err < 0)
- return err;
-
- /* enable display controller */
- value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
- value |= DSI_ENABLE;
- tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
-
- value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND);
- value &= ~DISP_CTRL_MODE_MASK;
- value |= DISP_CTRL_MODE_C_DISPLAY;
- tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND);
-
- value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL);
- value |= PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
- PW4_ENABLE | PM0_ENABLE | PM1_ENABLE;
- tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
-
- tegra_dc_commit(dc);
-
- /* enable DSI controller */
- tegra_dsi_enable(dsi);
-
- dsi->enabled = true;
-
- return 0;
-}
-
static int tegra_dsi_wait_idle(struct tegra_dsi *dsi, unsigned long timeout)
{
u32 value;
@@ -704,6 +663,29 @@ static void tegra_dsi_ganged_disable(struct tegra_dsi *dsi)
tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_CONTROL);
}
+static void tegra_dsi_set_timeout(struct tegra_dsi *dsi, unsigned long bclk,
+ unsigned int vrefresh)
+{
+ unsigned int timeout;
+ u32 value;
+
+ /* one frame high-speed transmission timeout */
+ timeout = (bclk / vrefresh) / 512;
+ value = DSI_TIMEOUT_LRX(0x2000) | DSI_TIMEOUT_HTX(timeout);
+ tegra_dsi_writel(dsi, value, DSI_TIMEOUT_0);
+
+ /* 2 ms peripheral timeout for panel */
+ timeout = 2 * bclk / 512 * 1000;
+ value = DSI_TIMEOUT_PR(timeout) | DSI_TIMEOUT_TA(0x2000);
+ tegra_dsi_writel(dsi, value, DSI_TIMEOUT_1);
+
+ value = DSI_TALLY_TA(0) | DSI_TALLY_LRX(0) | DSI_TALLY_HTX(0);
+ tegra_dsi_writel(dsi, value, DSI_TO_TALLY);
+
+ if (dsi->slave)
+ tegra_dsi_set_timeout(dsi->slave, bclk, vrefresh);
+}
+
static void tegra_dsi_disable(struct tegra_dsi *dsi)
{
u32 value;
@@ -747,82 +729,51 @@ static void tegra_dsi_soft_reset(struct tegra_dsi *dsi)
tegra_dsi_soft_reset(dsi->slave);
}
-static int tegra_output_dsi_disable(struct tegra_output *output)
+static void tegra_dsi_connector_dpms(struct drm_connector *connector, int mode)
{
- struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
- struct tegra_dsi *dsi = to_dsi(output);
- u32 value;
- int err;
-
- if (!dsi->enabled)
- return 0;
-
- tegra_dsi_video_disable(dsi);
-
- /*
- * The following accesses registers of the display controller, so make
- * sure it's only executed when the output is attached to one.
- */
- if (dc) {
- value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL);
- value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
- PW4_ENABLE | PM0_ENABLE | PM1_ENABLE);
- tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
-
- value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
- value &= ~DSI_ENABLE;
- tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
-
- tegra_dc_commit(dc);
- }
-
- err = tegra_dsi_wait_idle(dsi, 100);
- if (err < 0)
- dev_dbg(dsi->dev, "failed to idle DSI: %d\n", err);
-
- tegra_dsi_soft_reset(dsi);
- tegra_dsi_disable(dsi);
-
- dsi->enabled = false;
-
- return 0;
}
-static void tegra_dsi_set_timeout(struct tegra_dsi *dsi, unsigned long bclk,
- unsigned int vrefresh)
-{
- unsigned int timeout;
- u32 value;
+static const struct drm_connector_funcs tegra_dsi_connector_funcs = {
+ .dpms = tegra_dsi_connector_dpms,
+ .detect = tegra_output_connector_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = tegra_output_connector_destroy,
+};
- /* one frame high-speed transmission timeout */
- timeout = (bclk / vrefresh) / 512;
- value = DSI_TIMEOUT_LRX(0x2000) | DSI_TIMEOUT_HTX(timeout);
- tegra_dsi_writel(dsi, value, DSI_TIMEOUT_0);
+static enum drm_mode_status
+tegra_dsi_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ return MODE_OK;
+}
- /* 2 ms peripheral timeout for panel */
- timeout = 2 * bclk / 512 * 1000;
- value = DSI_TIMEOUT_PR(timeout) | DSI_TIMEOUT_TA(0x2000);
- tegra_dsi_writel(dsi, value, DSI_TIMEOUT_1);
+static const struct drm_connector_helper_funcs tegra_dsi_connector_helper_funcs = {
+ .get_modes = tegra_output_connector_get_modes,
+ .mode_valid = tegra_dsi_connector_mode_valid,
+ .best_encoder = tegra_output_connector_best_encoder,
+};
- value = DSI_TALLY_TA(0) | DSI_TALLY_LRX(0) | DSI_TALLY_HTX(0);
- tegra_dsi_writel(dsi, value, DSI_TO_TALLY);
+static const struct drm_encoder_funcs tegra_dsi_encoder_funcs = {
+ .destroy = tegra_output_encoder_destroy,
+};
- if (dsi->slave)
- tegra_dsi_set_timeout(dsi->slave, bclk, vrefresh);
+static void tegra_dsi_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
}
-static int tegra_output_dsi_setup_clock(struct tegra_output *output,
- struct clk *clk, unsigned long pclk,
- unsigned int *divp)
+static bool tegra_dsi_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted)
{
- struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
- struct drm_display_mode *mode = &dc->base.mode;
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ unsigned int mul, div, scdiv, vrefresh, lanes;
struct tegra_dsi *dsi = to_dsi(output);
- unsigned int mul, div, vrefresh, lanes;
- unsigned long bclk, plld;
+ unsigned long pclk, bclk, plld;
int err;
lanes = tegra_dsi_get_lanes(dsi);
+ pclk = mode->clock * 1000;
err = tegra_dsi_get_muldiv(dsi->format, &mul, &div);
if (err < 0)
@@ -847,19 +798,6 @@ static int tegra_output_dsi_setup_clock(struct tegra_output *output,
*/
plld /= 2;
- err = clk_set_parent(clk, dsi->clk_parent);
- if (err < 0) {
- dev_err(dsi->dev, "failed to set parent clock: %d\n", err);
- return err;
- }
-
- err = clk_set_rate(dsi->clk_parent, plld);
- if (err < 0) {
- dev_err(dsi->dev, "failed to set base clock rate to %lu Hz\n",
- plld);
- return err;
- }
-
/*
* Derive pixel clock from bit clock using the shift clock divider.
* Note that this is only half of what we would expect, but we need
@@ -870,39 +808,132 @@ static int tegra_output_dsi_setup_clock(struct tegra_output *output,
* not working properly otherwise. Perhaps the PLLs cannot generate
* frequencies sufficiently high.
*/
- *divp = ((8 * mul) / (div * lanes)) - 2;
+ scdiv = ((8 * mul) / (div * lanes)) - 2;
+
+ err = tegra_dc_setup_clock(dc, dsi->clk_parent, plld, scdiv);
+ if (err < 0) {
+ dev_err(output->dev, "failed to setup DC clock: %d\n", err);
+ return false;
+ }
+
+ err = clk_set_rate(dsi->clk_parent, plld);
+ if (err < 0) {
+ dev_err(dsi->dev, "failed to set clock rate to %lu Hz\n",
+ plld);
+ return false;
+ }
- /*
- * XXX: Move the below somewhere else so that we don't need to have
- * access to the vrefresh in this function?
- */
tegra_dsi_set_timeout(dsi, bclk, vrefresh);
err = tegra_dsi_set_phy_timing(dsi);
- if (err < 0)
- return err;
+ if (err < 0) {
+ dev_err(dsi->dev, "failed to setup D-PHY timing: %d\n", err);
+ return false;
+ }
- return 0;
+ return true;
+}
+
+static void tegra_dsi_encoder_prepare(struct drm_encoder *encoder)
+{
+}
+
+static void tegra_dsi_encoder_commit(struct drm_encoder *encoder)
+{
}
-static int tegra_output_dsi_check_mode(struct tegra_output *output,
+static void tegra_dsi_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
- enum drm_mode_status *status)
+ struct drm_display_mode *adjusted)
+{
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ struct tegra_dsi *dsi = to_dsi(output);
+ u32 value;
+ int err;
+
+
+ err = tegra_dsi_configure(dsi, dc->pipe, mode);
+ if (err < 0) {
+ dev_err(dsi->dev, "failed to configure DSI: %d\n", err);
+ return;
+ }
+
+ if (output->panel)
+ drm_panel_prepare(output->panel);
+
+ /* enable display controller */
+ value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
+ value |= DSI_ENABLE;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
+
+ value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND);
+ value &= ~DISP_CTRL_MODE_MASK;
+ value |= DISP_CTRL_MODE_C_DISPLAY;
+ tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND);
+
+ value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL);
+ value |= PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
+ PW4_ENABLE | PM0_ENABLE | PM1_ENABLE;
+ tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
+
+ tegra_dc_commit(dc);
+
+ /* enable DSI controller */
+ tegra_dsi_enable(dsi);
+
+ if (output->panel)
+ drm_panel_enable(output->panel);
+
+ return;
+}
+
+static void tegra_dsi_encoder_disable(struct drm_encoder *encoder)
{
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ struct tegra_dsi *dsi = to_dsi(output);
+ u32 value;
+ int err;
+
+ if (output->panel)
+ drm_panel_disable(output->panel);
+
+ tegra_dsi_video_disable(dsi);
+
/*
- * FIXME: For now, always assume that the mode is okay.
+ * The following accesses registers of the display controller, so make
+ * sure it's only executed when the output is attached to one.
*/
+ if (dc) {
+ value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
+ value &= ~DSI_ENABLE;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
- *status = MODE_OK;
+ tegra_dc_commit(dc);
+ }
- return 0;
+ err = tegra_dsi_wait_idle(dsi, 100);
+ if (err < 0)
+ dev_dbg(dsi->dev, "failed to idle DSI: %d\n", err);
+
+ tegra_dsi_soft_reset(dsi);
+
+ if (output->panel)
+ drm_panel_unprepare(output->panel);
+
+ tegra_dsi_disable(dsi);
+
+ return;
}
-static const struct tegra_output_ops dsi_ops = {
- .enable = tegra_output_dsi_enable,
- .disable = tegra_output_dsi_disable,
- .setup_clock = tegra_output_dsi_setup_clock,
- .check_mode = tegra_output_dsi_check_mode,
+static const struct drm_encoder_helper_funcs tegra_dsi_encoder_helper_funcs = {
+ .dpms = tegra_dsi_encoder_dpms,
+ .mode_fixup = tegra_dsi_encoder_mode_fixup,
+ .prepare = tegra_dsi_encoder_prepare,
+ .commit = tegra_dsi_encoder_commit,
+ .mode_set = tegra_dsi_encoder_mode_set,
+ .disable = tegra_dsi_encoder_disable,
};
static int tegra_dsi_pad_enable(struct tegra_dsi *dsi)
@@ -952,15 +983,30 @@ static int tegra_dsi_init(struct host1x_client *client)
/* Gangsters must not register their own outputs. */
if (!dsi->master) {
- dsi->output.type = TEGRA_OUTPUT_DSI;
dsi->output.dev = client->dev;
- dsi->output.ops = &dsi_ops;
- err = tegra_output_init(drm, &dsi->output);
- if (err < 0) {
- dev_err(client->dev, "output setup failed: %d\n", err);
- return err;
- }
+ drm_connector_init(drm, &dsi->output.connector,
+ &tegra_dsi_connector_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ drm_connector_helper_add(&dsi->output.connector,
+ &tegra_dsi_connector_helper_funcs);
+ dsi->output.connector.dpms = DRM_MODE_DPMS_OFF;
+
+ if (dsi->output.panel)
+ drm_panel_attach(dsi->output.panel,
+ &dsi->output.connector);
+
+ drm_encoder_init(drm, &dsi->output.encoder,
+ &tegra_dsi_encoder_funcs,
+ DRM_MODE_ENCODER_DSI);
+ drm_encoder_helper_add(&dsi->output.encoder,
+ &tegra_dsi_encoder_helper_funcs);
+
+ drm_mode_connector_attach_encoder(&dsi->output.connector,
+ &dsi->output.encoder);
+ drm_connector_register(&dsi->output.connector);
+
+ dsi->output.encoder.possible_crtcs = 0x3;
}
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
@@ -981,28 +1027,14 @@ static int tegra_dsi_exit(struct host1x_client *client)
struct tegra_dsi *dsi = host1x_client_to_dsi(client);
int err;
+ tegra_output_exit(&dsi->output);
+
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_dsi_debugfs_exit(dsi);
if (err < 0)
dev_err(dsi->dev, "debugfs cleanup failed: %d\n", err);
}
- if (!dsi->master) {
- err = tegra_output_disable(&dsi->output);
- if (err < 0) {
- dev_err(client->dev, "output failed to disable: %d\n",
- err);
- return err;
- }
-
- err = tegra_output_exit(&dsi->output);
- if (err < 0) {
- dev_err(client->dev, "output cleanup failed: %d\n",
- err);
- return err;
- }
- }
-
reset_control_assert(dsi->rst);
return 0;
@@ -1547,6 +1579,12 @@ static int tegra_dsi_remove(struct platform_device *pdev)
return err;
}
+ err = tegra_output_remove(&dsi->output);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to remove output: %d\n", err);
+ return err;
+ }
+
mipi_dsi_host_unregister(&dsi->host);
tegra_mipi_free(dsi->mipi);
@@ -1555,12 +1593,6 @@ static int tegra_dsi_remove(struct platform_device *pdev)
clk_disable_unprepare(dsi->clk);
reset_control_assert(dsi->rst);
- err = tegra_output_remove(&dsi->output);
- if (err < 0) {
- dev_err(&pdev->dev, "failed to remove output: %d\n", err);
- return err;
- }
-
return 0;
}
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index c7ebe8ea3868..81de885226ff 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -274,11 +274,6 @@ int tegra_output_init(struct drm_device *drm, struct tegra_output *output)
int connector, encoder;
switch (output->type) {
- case TEGRA_OUTPUT_DSI:
- connector = DRM_MODE_CONNECTOR_DSI;
- encoder = DRM_MODE_ENCODER_DSI;
- break;
-
case TEGRA_OUTPUT_EDP:
connector = DRM_MODE_CONNECTOR_eDP;
encoder = DRM_MODE_ENCODER_TMDS;
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-02-10 13:29:19 +0000