OMAPDSS: panel sharp-ls037v7dw01 DT support
Add DT support for sharp-ls037v7dw01. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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9522f9fe86
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be88c16a22
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@ -12,15 +12,18 @@
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#include <linux/delay.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_gpio.h>
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#include <linux/platform_device.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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#include <linux/regulator/consumer.h>
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#include <video/omapdss.h>
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#include <video/omapdss.h>
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#include <video/omap-panel-data.h>
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#include <video/omap-panel-data.h>
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struct panel_drv_data {
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struct panel_drv_data {
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struct omap_dss_device dssdev;
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struct omap_dss_device dssdev;
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struct omap_dss_device *in;
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struct omap_dss_device *in;
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struct regulator *vcc;
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int data_lines;
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int data_lines;
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@ -95,12 +98,21 @@ static int sharp_ls_enable(struct omap_dss_device *dssdev)
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if (omapdss_device_is_enabled(dssdev))
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if (omapdss_device_is_enabled(dssdev))
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return 0;
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return 0;
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in->ops.dpi->set_data_lines(in, ddata->data_lines);
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if (ddata->data_lines)
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in->ops.dpi->set_data_lines(in, ddata->data_lines);
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in->ops.dpi->set_timings(in, &ddata->videomode);
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in->ops.dpi->set_timings(in, &ddata->videomode);
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if (ddata->vcc) {
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r = regulator_enable(ddata->vcc);
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if (r != 0)
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return r;
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}
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r = in->ops.dpi->enable(in);
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r = in->ops.dpi->enable(in);
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if (r)
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if (r) {
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regulator_disable(ddata->vcc);
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return r;
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return r;
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}
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/* wait couple of vsyncs until enabling the LCD */
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/* wait couple of vsyncs until enabling the LCD */
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msleep(50);
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msleep(50);
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@ -136,6 +148,9 @@ static void sharp_ls_disable(struct omap_dss_device *dssdev)
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in->ops.dpi->disable(in);
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in->ops.dpi->disable(in);
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if (ddata->vcc)
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regulator_disable(ddata->vcc);
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dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
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dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
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}
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}
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@ -249,6 +264,75 @@ static int sharp_ls_probe_pdata(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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static int sharp_ls_get_gpio_of(struct device *dev, int index, int val,
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const char *desc, struct gpio_desc **gpiod)
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{
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struct gpio_desc *gd;
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int r;
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*gpiod = NULL;
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gd = devm_gpiod_get_index(dev, desc, index);
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if (IS_ERR(gd))
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return PTR_ERR(gd) == -ENOENT ? 0 : PTR_ERR(gd);
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r = gpiod_direction_output(gd, val);
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if (r)
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return r;
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*gpiod = gd;
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return 0;
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}
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static int sharp_ls_probe_of(struct platform_device *pdev)
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{
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struct panel_drv_data *ddata = platform_get_drvdata(pdev);
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struct device_node *node = pdev->dev.of_node;
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struct omap_dss_device *in;
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int r;
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ddata->vcc = devm_regulator_get(&pdev->dev, "envdd");
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if (IS_ERR(ddata->vcc)) {
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dev_err(&pdev->dev, "failed to get regulator\n");
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return PTR_ERR(ddata->vcc);
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}
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/* lcd INI */
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r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "enable", &ddata->ini_gpio);
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if (r)
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return r;
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/* lcd RESB */
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r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "reset", &ddata->resb_gpio);
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if (r)
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return r;
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/* lcd MO */
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r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "mode", &ddata->mo_gpio);
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if (r)
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return r;
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/* lcd LR */
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r = sharp_ls_get_gpio_of(&pdev->dev, 1, 1, "mode", &ddata->lr_gpio);
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if (r)
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return r;
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/* lcd UD */
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r = sharp_ls_get_gpio_of(&pdev->dev, 2, 1, "mode", &ddata->ud_gpio);
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if (r)
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return r;
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in = omapdss_of_find_source_for_first_ep(node);
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if (IS_ERR(in)) {
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dev_err(&pdev->dev, "failed to find video source\n");
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return PTR_ERR(in);
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}
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ddata->in = in;
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return 0;
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}
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static int sharp_ls_probe(struct platform_device *pdev)
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static int sharp_ls_probe(struct platform_device *pdev)
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{
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{
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struct panel_drv_data *ddata;
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struct panel_drv_data *ddata;
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@ -265,6 +349,10 @@ static int sharp_ls_probe(struct platform_device *pdev)
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r = sharp_ls_probe_pdata(pdev);
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r = sharp_ls_probe_pdata(pdev);
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if (r)
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if (r)
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return r;
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return r;
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} else if (pdev->dev.of_node) {
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r = sharp_ls_probe_of(pdev);
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if (r)
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return r;
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} else {
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} else {
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return -ENODEV;
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return -ENODEV;
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}
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}
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@ -308,12 +396,20 @@ static int __exit sharp_ls_remove(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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static const struct of_device_id sharp_ls_of_match[] = {
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{ .compatible = "omapdss,sharp,ls037v7dw01", },
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{},
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};
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MODULE_DEVICE_TABLE(of, sharp_ls_of_match);
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static struct platform_driver sharp_ls_driver = {
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static struct platform_driver sharp_ls_driver = {
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.probe = sharp_ls_probe,
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.probe = sharp_ls_probe,
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.remove = __exit_p(sharp_ls_remove),
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.remove = __exit_p(sharp_ls_remove),
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.driver = {
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.driver = {
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.name = "panel-sharp-ls037v7dw01",
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.name = "panel-sharp-ls037v7dw01",
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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.of_match_table = sharp_ls_of_match,
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},
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},
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};
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};
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