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path: root/drivers/gpu/drm/omapdrm/dss/dpi.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/dpi.c')
-rw-r--r--drivers/gpu/drm/omapdrm/dss/dpi.c88
1 files changed, 41 insertions, 47 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c b/drivers/gpu/drm/omapdrm/dss/dpi.c
index 86dbb65a6c28..daf286fc8a40 100644
--- a/drivers/gpu/drm/omapdrm/dss/dpi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dpi.c
@@ -32,13 +32,14 @@
#include <linux/string.h>
#include <linux/of.h>
#include <linux/clk.h>
+#include <linux/sys_soc.h>
#include "omapdss.h"
#include "dss.h"
-#include "dss_features.h"
struct dpi_data {
struct platform_device *pdev;
+ enum dss_model dss_model;
struct regulator *vdds_dsi_reg;
enum dss_clk_source clk_src;
@@ -99,25 +100,21 @@ static enum dss_clk_source dpi_get_clk_src_dra7xx(enum omap_channel channel)
return DSS_CLK_SRC_FCK;
}
-static enum dss_clk_source dpi_get_clk_src(enum omap_channel channel)
+static enum dss_clk_source dpi_get_clk_src(struct dpi_data *dpi)
{
+ enum omap_channel channel = dpi->output.dispc_channel;
+
/*
* XXX we can't currently use DSI PLL for DPI with OMAP3, as the DSI PLL
* would also be used for DISPC fclk. Meaning, when the DPI output is
* disabled, DISPC clock will be disabled, and TV out will stop.
*/
- switch (omapdss_get_version()) {
- case OMAPDSS_VER_OMAP24xx:
- case OMAPDSS_VER_OMAP34xx_ES1:
- case OMAPDSS_VER_OMAP34xx_ES3:
- case OMAPDSS_VER_OMAP3630:
- case OMAPDSS_VER_AM35xx:
- case OMAPDSS_VER_AM43xx:
+ switch (dpi->dss_model) {
+ case DSS_MODEL_OMAP2:
+ case DSS_MODEL_OMAP3:
return DSS_CLK_SRC_FCK;
- case OMAPDSS_VER_OMAP4430_ES1:
- case OMAPDSS_VER_OMAP4430_ES2:
- case OMAPDSS_VER_OMAP4:
+ case DSS_MODEL_OMAP4:
switch (channel) {
case OMAP_DSS_CHANNEL_LCD:
return DSS_CLK_SRC_PLL1_1;
@@ -127,7 +124,7 @@ static enum dss_clk_source dpi_get_clk_src(enum omap_channel channel)
return DSS_CLK_SRC_FCK;
}
- case OMAPDSS_VER_OMAP5:
+ case DSS_MODEL_OMAP5:
switch (channel) {
case OMAP_DSS_CHANNEL_LCD:
return DSS_CLK_SRC_PLL1_1;
@@ -138,7 +135,7 @@ static enum dss_clk_source dpi_get_clk_src(enum omap_channel channel)
return DSS_CLK_SRC_FCK;
}
- case OMAPDSS_VER_DRA7xx:
+ case DSS_MODEL_DRA7:
return dpi_get_clk_src_dra7xx(channel);
default:
@@ -213,7 +210,7 @@ static bool dpi_calc_pll_cb(int n, int m, unsigned long fint,
ctx->pll_cinfo.clkdco = clkdco;
return dss_pll_hsdiv_calc_a(ctx->pll, clkdco,
- ctx->pck_min, dss_feat_get_param_max(FEAT_PARAM_DSS_FCK),
+ ctx->pck_min, dss_get_max_fck_rate(),
dpi_calc_hsdiv_cb, ctx);
}
@@ -403,19 +400,13 @@ static int dpi_display_enable(struct omap_dss_device *dssdev)
mutex_lock(&dpi->lock);
- if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && !dpi->vdds_dsi_reg) {
- DSSERR("no VDSS_DSI regulator\n");
- r = -ENODEV;
- goto err_no_reg;
- }
-
if (!out->dispc_channel_connected) {
DSSERR("failed to enable display: no output/manager\n");
r = -ENODEV;
goto err_no_out_mgr;
}
- if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) {
+ if (dpi->vdds_dsi_reg) {
r = regulator_enable(dpi->vdds_dsi_reg);
if (r)
goto err_reg_enable;
@@ -459,11 +450,10 @@ err_pll_init:
err_src_sel:
dispc_runtime_put();
err_get_dispc:
- if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
+ if (dpi->vdds_dsi_reg)
regulator_disable(dpi->vdds_dsi_reg);
err_reg_enable:
err_no_out_mgr:
-err_no_reg:
mutex_unlock(&dpi->lock);
return r;
}
@@ -484,7 +474,7 @@ static void dpi_display_disable(struct omap_dss_device *dssdev)
dispc_runtime_put();
- if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
+ if (dpi->vdds_dsi_reg)
regulator_disable(dpi->vdds_dsi_reg);
mutex_unlock(&dpi->lock);
@@ -575,11 +565,21 @@ static int dpi_verify_pll(struct dss_pll *pll)
return 0;
}
+static const struct soc_device_attribute dpi_soc_devices[] = {
+ { .family = "OMAP3[456]*" },
+ { .family = "[AD]M37*" },
+ { /* sentinel */ }
+};
+
static int dpi_init_regulator(struct dpi_data *dpi)
{
struct regulator *vdds_dsi;
- if (!dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
+ /*
+ * The DPI uses the DSI VDDS on OMAP34xx, OMAP35xx, OMAP36xx, AM37xx and
+ * DM37xx only.
+ */
+ if (!soc_device_match(dpi_soc_devices))
return 0;
if (dpi->vdds_dsi_reg)
@@ -604,7 +604,7 @@ static void dpi_init_pll(struct dpi_data *dpi)
if (dpi->pll)
return;
- dpi->clk_src = dpi_get_clk_src(dpi->output.dispc_channel);
+ dpi->clk_src = dpi_get_clk_src(dpi);
pll = dss_pll_find_by_src(dpi->clk_src);
if (!pll)
@@ -624,18 +624,14 @@ static void dpi_init_pll(struct dpi_data *dpi)
* the channel in some more dynamic manner, or get the channel as a user
* parameter.
*/
-static enum omap_channel dpi_get_channel(int port_num)
+static enum omap_channel dpi_get_channel(struct dpi_data *dpi, int port_num)
{
- switch (omapdss_get_version()) {
- case OMAPDSS_VER_OMAP24xx:
- case OMAPDSS_VER_OMAP34xx_ES1:
- case OMAPDSS_VER_OMAP34xx_ES3:
- case OMAPDSS_VER_OMAP3630:
- case OMAPDSS_VER_AM35xx:
- case OMAPDSS_VER_AM43xx:
+ switch (dpi->dss_model) {
+ case DSS_MODEL_OMAP2:
+ case DSS_MODEL_OMAP3:
return OMAP_DSS_CHANNEL_LCD;
- case OMAPDSS_VER_DRA7xx:
+ case DSS_MODEL_DRA7:
switch (port_num) {
case 2:
return OMAP_DSS_CHANNEL_LCD3;
@@ -646,12 +642,10 @@ static enum omap_channel dpi_get_channel(int port_num)
return OMAP_DSS_CHANNEL_LCD;
}
- case OMAPDSS_VER_OMAP4430_ES1:
- case OMAPDSS_VER_OMAP4430_ES2:
- case OMAPDSS_VER_OMAP4:
+ case DSS_MODEL_OMAP4:
return OMAP_DSS_CHANNEL_LCD2;
- case OMAPDSS_VER_OMAP5:
+ case DSS_MODEL_OMAP5:
return OMAP_DSS_CHANNEL_LCD3;
default:
@@ -716,10 +710,8 @@ static const struct omapdss_dpi_ops dpi_ops = {
.get_timings = dpi_get_timings,
};
-static void dpi_init_output_port(struct platform_device *pdev,
- struct device_node *port)
+static void dpi_init_output_port(struct dpi_data *dpi, struct device_node *port)
{
- struct dpi_data *dpi = port->data;
struct omap_dss_device *out = &dpi->output;
int r;
u32 port_num;
@@ -741,10 +733,10 @@ static void dpi_init_output_port(struct platform_device *pdev,
break;
}
- out->dev = &pdev->dev;
+ out->dev = &dpi->pdev->dev;
out->id = OMAP_DSS_OUTPUT_DPI;
out->output_type = OMAP_DISPLAY_TYPE_DPI;
- out->dispc_channel = dpi_get_channel(port_num);
+ out->dispc_channel = dpi_get_channel(dpi, port_num);
out->port_num = port_num;
out->ops.dpi = &dpi_ops;
out->owner = THIS_MODULE;
@@ -760,7 +752,8 @@ static void dpi_uninit_output_port(struct device_node *port)
omapdss_unregister_output(out);
}
-int dpi_init_port(struct platform_device *pdev, struct device_node *port)
+int dpi_init_port(struct platform_device *pdev, struct device_node *port,
+ enum dss_model dss_model)
{
struct dpi_data *dpi;
struct device_node *ep;
@@ -786,11 +779,12 @@ int dpi_init_port(struct platform_device *pdev, struct device_node *port)
of_node_put(ep);
dpi->pdev = pdev;
+ dpi->dss_model = dss_model;
port->data = dpi;
mutex_init(&dpi->lock);
- dpi_init_output_port(pdev, port);
+ dpi_init_output_port(dpi, port);
dpi->port_initialized = true;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 13:44:32 +0100