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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>
159 lines
4.6 KiB
Diff
159 lines
4.6 KiB
Diff
From 28e64e830ef487b400b3b943fa3bda83dfb2a937 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Tue, 9 Aug 2022 22:03:42 -0500
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Subject: [PATCH 096/117] drm/sun4i: dsi: Add a variant structure
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Replace the ad-hoc calls to of_device_is_compatible() with a structure
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describing the differences between variants. This is in preparation for
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adding more variants to the driver.
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Series-changes: 2
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- Add the variant check to the probe error path
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Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 53 +++++++++++++++++---------
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drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 7 ++++
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2 files changed, 42 insertions(+), 18 deletions(-)
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--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
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+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
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@@ -1101,12 +1101,16 @@ static const struct component_ops sun6i_
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static int sun6i_dsi_probe(struct platform_device *pdev)
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{
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+ const struct sun6i_dsi_variant *variant;
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struct device *dev = &pdev->dev;
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- const char *bus_clk_name = NULL;
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struct sun6i_dsi *dsi;
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void __iomem *base;
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int ret;
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+ variant = device_get_match_data(dev);
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+ if (!variant)
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+ return -EINVAL;
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+
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dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
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if (!dsi)
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return -ENOMEM;
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@@ -1114,10 +1118,7 @@ static int sun6i_dsi_probe(struct platfo
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dsi->dev = dev;
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dsi->host.ops = &sun6i_dsi_host_ops;
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dsi->host.dev = dev;
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-
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- if (of_device_is_compatible(dev->of_node,
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- "allwinner,sun6i-a31-mipi-dsi"))
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- bus_clk_name = "bus";
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+ dsi->variant = variant;
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base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(base)) {
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@@ -1142,7 +1143,7 @@ static int sun6i_dsi_probe(struct platfo
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return PTR_ERR(dsi->regs);
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}
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- dsi->bus_clk = devm_clk_get(dev, bus_clk_name);
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+ dsi->bus_clk = devm_clk_get(dev, variant->has_mod_clk ? "bus" : NULL);
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if (IS_ERR(dsi->bus_clk))
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return dev_err_probe(dev, PTR_ERR(dsi->bus_clk),
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"Couldn't get the DSI bus clock\n");
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@@ -1151,21 +1152,21 @@ static int sun6i_dsi_probe(struct platfo
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if (ret)
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return ret;
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- if (of_device_is_compatible(dev->of_node,
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- "allwinner,sun6i-a31-mipi-dsi")) {
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+ if (variant->has_mod_clk) {
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dsi->mod_clk = devm_clk_get(dev, "mod");
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if (IS_ERR(dsi->mod_clk)) {
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dev_err(dev, "Couldn't get the DSI mod clock\n");
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ret = PTR_ERR(dsi->mod_clk);
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goto err_attach_clk;
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}
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- }
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- /*
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- * In order to operate properly, that clock seems to be always
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- * set to 297MHz.
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- */
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- clk_set_rate_exclusive(dsi->mod_clk, 297000000);
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+ /*
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+ * In order to operate properly, the module clock on the
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+ * A31 variant always seems to be set to 297MHz.
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+ */
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+ if (variant->set_mod_clk)
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+ clk_set_rate_exclusive(dsi->mod_clk, 297000000);
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+ }
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dsi->dphy = devm_phy_get(dev, "dphy");
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if (IS_ERR(dsi->dphy)) {
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@@ -1191,7 +1192,8 @@ static int sun6i_dsi_probe(struct platfo
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err_remove_dsi_host:
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mipi_dsi_host_unregister(&dsi->host);
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err_unprotect_clk:
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- clk_rate_exclusive_put(dsi->mod_clk);
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+ if (dsi->variant->has_mod_clk && dsi->variant->set_mod_clk)
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+ clk_rate_exclusive_put(dsi->mod_clk);
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err_attach_clk:
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regmap_mmio_detach_clk(dsi->regs);
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@@ -1205,16 +1207,31 @@ static int sun6i_dsi_remove(struct platf
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component_del(&pdev->dev, &sun6i_dsi_ops);
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mipi_dsi_host_unregister(&dsi->host);
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- clk_rate_exclusive_put(dsi->mod_clk);
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+ if (dsi->variant->has_mod_clk && dsi->variant->set_mod_clk)
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+ clk_rate_exclusive_put(dsi->mod_clk);
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regmap_mmio_detach_clk(dsi->regs);
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return 0;
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}
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+static const struct sun6i_dsi_variant sun6i_a31_mipi_dsi_variant = {
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+ .has_mod_clk = true,
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+ .set_mod_clk = true,
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+};
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+
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+static const struct sun6i_dsi_variant sun50i_a64_mipi_dsi_variant = {
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+};
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+
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static const struct of_device_id sun6i_dsi_of_table[] = {
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- { .compatible = "allwinner,sun6i-a31-mipi-dsi" },
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- { .compatible = "allwinner,sun50i-a64-mipi-dsi" },
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+ {
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+ .compatible = "allwinner,sun6i-a31-mipi-dsi",
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+ .data = &sun6i_a31_mipi_dsi_variant,
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+ },
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+ {
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+ .compatible = "allwinner,sun50i-a64-mipi-dsi",
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+ .data = &sun50i_a64_mipi_dsi_variant,
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+ },
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{ }
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};
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MODULE_DEVICE_TABLE(of, sun6i_dsi_of_table);
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--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
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+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
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@@ -15,6 +15,11 @@
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#define SUN6I_DSI_TCON_DIV 4
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+struct sun6i_dsi_variant {
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+ bool has_mod_clk;
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+ bool set_mod_clk;
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+};
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+
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struct sun6i_dsi {
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struct drm_connector connector;
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struct drm_encoder encoder;
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@@ -31,6 +36,8 @@ struct sun6i_dsi {
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struct mipi_dsi_device *device;
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struct drm_device *drm;
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struct drm_panel *panel;
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+
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+ const struct sun6i_dsi_variant *variant;
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};
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static inline struct sun6i_dsi *host_to_sun6i_dsi(struct mipi_dsi_host *host)
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