diff options
author | Tony Lindgren <tony@atomide.com> | 2014-05-16 09:45:09 +0300 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-05-20 14:39:45 +0300 |
commit | be88c16a22ed92e8d7b6dc27f578eb3b43f696dc (patch) | |
tree | d0d8dedae0ed6532219c14a52165f9127b435907 /drivers/video/fbdev/omap2/displays-new | |
parent | 9522f9fe86f9df7203ca0b649bf5eda912e899c1 (diff) | |
download | op-kernel-dev-be88c16a22ed92e8d7b6dc27f578eb3b43f696dc.zip op-kernel-dev-be88c16a22ed92e8d7b6dc27f578eb3b43f696dc.tar.gz |
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>
Diffstat (limited to 'drivers/video/fbdev/omap2/displays-new')
-rw-r--r-- | drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c | 102 |
1 files changed, 99 insertions, 3 deletions
diff --git a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c index 015d493..f1f72ce 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c @@ -12,15 +12,18 @@ #include <linux/delay.h> #include <linux/gpio.h> #include <linux/module.h> +#include <linux/of.h> +#include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/slab.h> - +#include <linux/regulator/consumer.h> #include <video/omapdss.h> #include <video/omap-panel-data.h> struct panel_drv_data { struct omap_dss_device dssdev; struct omap_dss_device *in; + struct regulator *vcc; int data_lines; @@ -95,12 +98,21 @@ static int sharp_ls_enable(struct omap_dss_device *dssdev) if (omapdss_device_is_enabled(dssdev)) return 0; - in->ops.dpi->set_data_lines(in, ddata->data_lines); + if (ddata->data_lines) + in->ops.dpi->set_data_lines(in, ddata->data_lines); in->ops.dpi->set_timings(in, &ddata->videomode); + if (ddata->vcc) { + r = regulator_enable(ddata->vcc); + if (r != 0) + return r; + } + r = in->ops.dpi->enable(in); - if (r) + if (r) { + regulator_disable(ddata->vcc); return r; + } /* wait couple of vsyncs until enabling the LCD */ msleep(50); @@ -136,6 +148,9 @@ static void sharp_ls_disable(struct omap_dss_device *dssdev) in->ops.dpi->disable(in); + if (ddata->vcc) + regulator_disable(ddata->vcc); + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; } @@ -249,6 +264,75 @@ static int sharp_ls_probe_pdata(struct platform_device *pdev) return 0; } +static int sharp_ls_get_gpio_of(struct device *dev, int index, int val, + const char *desc, struct gpio_desc **gpiod) +{ + struct gpio_desc *gd; + int r; + + *gpiod = NULL; + + gd = devm_gpiod_get_index(dev, desc, index); + if (IS_ERR(gd)) + return PTR_ERR(gd) == -ENOENT ? 0 : PTR_ERR(gd); + + r = gpiod_direction_output(gd, val); + if (r) + return r; + + *gpiod = gd; + return 0; +} + +static int sharp_ls_probe_of(struct platform_device *pdev) +{ + struct panel_drv_data *ddata = platform_get_drvdata(pdev); + struct device_node *node = pdev->dev.of_node; + struct omap_dss_device *in; + int r; + + ddata->vcc = devm_regulator_get(&pdev->dev, "envdd"); + if (IS_ERR(ddata->vcc)) { + dev_err(&pdev->dev, "failed to get regulator\n"); + return PTR_ERR(ddata->vcc); + } + + /* lcd INI */ + r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "enable", &ddata->ini_gpio); + if (r) + return r; + + /* lcd RESB */ + r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "reset", &ddata->resb_gpio); + if (r) + return r; + + /* lcd MO */ + r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "mode", &ddata->mo_gpio); + if (r) + return r; + + /* lcd LR */ + r = sharp_ls_get_gpio_of(&pdev->dev, 1, 1, "mode", &ddata->lr_gpio); + if (r) + return r; + + /* lcd UD */ + r = sharp_ls_get_gpio_of(&pdev->dev, 2, 1, "mode", &ddata->ud_gpio); + if (r) + return r; + + in = omapdss_of_find_source_for_first_ep(node); + if (IS_ERR(in)) { + dev_err(&pdev->dev, "failed to find video source\n"); + return PTR_ERR(in); + } + + ddata->in = in; + + return 0; +} + static int sharp_ls_probe(struct platform_device *pdev) { struct panel_drv_data *ddata; @@ -265,6 +349,10 @@ static int sharp_ls_probe(struct platform_device *pdev) r = sharp_ls_probe_pdata(pdev); if (r) return r; + } else if (pdev->dev.of_node) { + r = sharp_ls_probe_of(pdev); + if (r) + return r; } else { return -ENODEV; } @@ -308,12 +396,20 @@ static int __exit sharp_ls_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id sharp_ls_of_match[] = { + { .compatible = "omapdss,sharp,ls037v7dw01", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, sharp_ls_of_match); + static struct platform_driver sharp_ls_driver = { .probe = sharp_ls_probe, .remove = __exit_p(sharp_ls_remove), .driver = { .name = "panel-sharp-ls037v7dw01", .owner = THIS_MODULE, + .of_match_table = sharp_ls_of_match, }, }; |