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99545b4bb1
This target adds support for the Allwinner D1 RISC-V based SoCs.
- RISC-V single-core T-Head C906 (RV64GCV)
- Tensilica HiFi4 DSP
- DDR2/DDR3 support
- 10/100/1000M ethernet
- usual peripherals like USB2, SPI, I2C, PWM, etc.
Four boards are supported:
- Dongshan Nezha STU
- 512Mb RAM
- ethernet
- LicheePi RV Dock
- 512Mb RAM
- wireless-only (RTL8723DS)
- MangoPi MQ-Pro
- 512Mb RAM
- there are pads available for an SPI flash
- wireless-only (RTL8723DS)
- Nezha D1
- 512Mb/1Gb/2Gb RAM
- 256Mb NAND flash
- ethernet, wireless
Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
67 lines
1.8 KiB
Diff
67 lines
1.8 KiB
Diff
From 979271f803c1578087a965a2a4b845c87e7d922f Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Sun, 7 Aug 2022 19:14:21 -0500
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Subject: [PATCH 108/117] drm: panel: cwd686: Add regulators
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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.../gpu/drm/panel/panel-clockwork-cwd686.c | 26 ++++++++++++++++++-
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1 file changed, 25 insertions(+), 1 deletion(-)
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--- a/drivers/gpu/drm/panel/panel-clockwork-cwd686.c
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+++ b/drivers/gpu/drm/panel/panel-clockwork-cwd686.c
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@@ -20,7 +20,8 @@
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struct cwd686 {
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struct device *dev;
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struct drm_panel panel;
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- struct regulator *supply;
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+ struct regulator *iovcc;
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+ struct regulator *vci;
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struct gpio_desc *enable_gpio;
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struct gpio_desc *reset_gpio;
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struct backlight_device *backlight;
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@@ -279,6 +280,9 @@ static int cwd686_unprepare(struct drm_p
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gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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+ regulator_disable(ctx->vci);
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+ regulator_disable(ctx->iovcc);
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+
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ctx->prepared = false;
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return 0;
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@@ -293,6 +297,18 @@ static int cwd686_prepare(struct drm_pan
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if (ctx->prepared)
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return 0;
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+ err = regulator_enable(ctx->iovcc);
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+ if (err) {
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+ dev_err(ctx->dev, "failed to enable iovcc (%d)\n", err);
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+ return err;
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+ }
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+
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+ err = regulator_enable(ctx->vci);
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+ if (err) {
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+ dev_err(ctx->dev, "failed to enable vci (%d)\n", err);
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+ return err;
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+ }
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+
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gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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/* T2 */
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msleep(10);
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@@ -402,6 +418,14 @@ static int cwd686_probe(struct mipi_dsi_
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return err;
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}
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+ ctx->iovcc = devm_regulator_get(dev, "iovcc");
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+ if (IS_ERR(ctx->iovcc))
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+ return PTR_ERR(ctx->iovcc);
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+
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+ ctx->vci = devm_regulator_get(dev, "vci");
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+ if (IS_ERR(ctx->vci))
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+ return PTR_ERR(ctx->vci);
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+
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ctx->backlight = devm_of_find_backlight(dev);
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if (IS_ERR(ctx->backlight))
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return PTR_ERR(ctx->backlight);
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