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path: root/drivers/gpu/drm/ast/ast_dp501.c
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_dp501.c')
-rw-r--r--drivers/gpu/drm/ast/ast_dp501.c151
1 files changed, 84 insertions, 67 deletions
diff --git a/drivers/gpu/drm/ast/ast_dp501.c b/drivers/gpu/drm/ast/ast_dp501.c
index 4c7375b45281..4f75a9efb610 100644
--- a/drivers/gpu/drm/ast/ast_dp501.c
+++ b/drivers/gpu/drm/ast/ast_dp501.c
@@ -1,15 +1,31 @@
// SPDX-License-Identifier: GPL-2.0
+#include <linux/delay.h>
#include <linux/firmware.h>
-#include <drm/drmP.h>
+#include <linux/module.h>
+
#include "ast_drv.h"
+
MODULE_FIRMWARE("ast_dp501_fw.bin");
+static void ast_release_firmware(void *data)
+{
+ struct ast_private *ast = data;
+
+ release_firmware(ast->dp501_fw);
+ ast->dp501_fw = NULL;
+}
+
static int ast_load_dp501_microcode(struct drm_device *dev)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
+ int ret;
- return request_firmware(&ast->dp501_fw, "ast_dp501_fw.bin", dev->dev);
+ ret = request_firmware(&ast->dp501_fw, "ast_dp501_fw.bin", dev->dev);
+ if (ret)
+ return ret;
+
+ return devm_add_action_or_reset(dev->dev, ast_release_firmware, ast);
}
static void send_ack(struct ast_private *ast)
@@ -90,7 +106,7 @@ static bool wait_fw_ready(struct ast_private *ast)
static bool ast_write_cmd(struct drm_device *dev, u8 data)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
int retry = 0;
if (wait_nack(ast)) {
send_nack(ast);
@@ -112,7 +128,7 @@ static bool ast_write_cmd(struct drm_device *dev, u8 data)
static bool ast_write_data(struct drm_device *dev, u8 data)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
if (wait_nack(ast)) {
send_nack(ast);
@@ -130,7 +146,7 @@ static bool ast_write_data(struct drm_device *dev, u8 data)
#if 0
static bool ast_read_data(struct drm_device *dev, u8 *data)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u8 tmp;
*data = 0;
@@ -169,10 +185,13 @@ static u32 get_fw_base(struct ast_private *ast)
bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u32 i, data;
u32 boot_address;
+ if (ast->config_mode != ast_use_p2a)
+ return false;
+
data = ast_mindwm(ast, 0x1e6e2100) & 0x01;
if (data) {
boot_address = get_fw_base(ast);
@@ -185,12 +204,15 @@ bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size)
static bool ast_launch_m68k(struct drm_device *dev)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u32 i, data, len = 0;
u32 boot_address;
u8 *fw_addr = NULL;
u8 jreg;
+ if (ast->config_mode != ast_use_p2a)
+ return false;
+
data = ast_mindwm(ast, 0x1e6e2100) & 0x01;
if (!data) {
@@ -250,58 +272,61 @@ static bool ast_launch_m68k(struct drm_device *dev)
return true;
}
-u8 ast_get_dp501_max_clk(struct drm_device *dev)
-{
- struct ast_private *ast = dev->dev_private;
- u32 boot_address, offset, data;
- u8 linkcap[4], linkrate, linklanes, maxclk = 0xff;
-
- boot_address = get_fw_base(ast);
-
- /* validate FW version */
- offset = 0xf000;
- data = ast_mindwm(ast, boot_address + offset);
- if ((data & 0xf0) != 0x10) /* version: 1x */
- return maxclk;
-
- /* Read Link Capability */
- offset = 0xf014;
- *(u32 *)linkcap = ast_mindwm(ast, boot_address + offset);
- if (linkcap[2] == 0) {
- linkrate = linkcap[0];
- linklanes = linkcap[1];
- data = (linkrate == 0x0a) ? (90 * linklanes) : (54 * linklanes);
- if (data > 0xff)
- data = 0xff;
- maxclk = (u8)data;
- }
- return maxclk;
-}
-
bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u32 i, boot_address, offset, data;
+ u32 *pEDIDidx;
- boot_address = get_fw_base(ast);
-
- /* validate FW version */
- offset = 0xf000;
- data = ast_mindwm(ast, boot_address + offset);
- if ((data & 0xf0) != 0x10)
- return false;
-
- /* validate PnP Monitor */
- offset = 0xf010;
- data = ast_mindwm(ast, boot_address + offset);
- if (!(data & 0x01))
- return false;
+ if (ast->config_mode == ast_use_p2a) {
+ boot_address = get_fw_base(ast);
- /* Read EDID */
- offset = 0xf020;
- for (i = 0; i < 128; i += 4) {
- data = ast_mindwm(ast, boot_address + offset + i);
- *(u32 *)(ediddata + i) = data;
+ /* validate FW version */
+ offset = AST_DP501_GBL_VERSION;
+ data = ast_mindwm(ast, boot_address + offset);
+ if ((data & AST_DP501_FW_VERSION_MASK) != AST_DP501_FW_VERSION_1)
+ return false;
+
+ /* validate PnP Monitor */
+ offset = AST_DP501_PNPMONITOR;
+ data = ast_mindwm(ast, boot_address + offset);
+ if (!(data & AST_DP501_PNP_CONNECTED))
+ return false;
+
+ /* Read EDID */
+ offset = AST_DP501_EDID_DATA;
+ for (i = 0; i < 128; i += 4) {
+ data = ast_mindwm(ast, boot_address + offset + i);
+ pEDIDidx = (u32 *)(ediddata + i);
+ *pEDIDidx = data;
+ }
+ } else {
+ if (!ast->dp501_fw_buf)
+ return false;
+
+ /* dummy read */
+ offset = 0x0000;
+ data = readl(ast->dp501_fw_buf + offset);
+
+ /* validate FW version */
+ offset = AST_DP501_GBL_VERSION;
+ data = readl(ast->dp501_fw_buf + offset);
+ if ((data & AST_DP501_FW_VERSION_MASK) != AST_DP501_FW_VERSION_1)
+ return false;
+
+ /* validate PnP Monitor */
+ offset = AST_DP501_PNPMONITOR;
+ data = readl(ast->dp501_fw_buf + offset);
+ if (!(data & AST_DP501_PNP_CONNECTED))
+ return false;
+
+ /* Read EDID */
+ offset = AST_DP501_EDID_DATA;
+ for (i = 0; i < 128; i += 4) {
+ data = readl(ast->dp501_fw_buf + offset + i);
+ pEDIDidx = (u32 *)(ediddata + i);
+ *pEDIDidx = data;
+ }
}
return true;
@@ -309,7 +334,7 @@ bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata)
static bool ast_init_dvo(struct drm_device *dev)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u8 jreg;
u32 data;
ast_write32(ast, 0xf004, 0x1e6e0000);
@@ -382,7 +407,7 @@ static bool ast_init_dvo(struct drm_device *dev)
static void ast_init_analog(struct drm_device *dev)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u32 data;
/*
@@ -409,7 +434,7 @@ static void ast_init_analog(struct drm_device *dev)
void ast_init_3rdtx(struct drm_device *dev)
{
- struct ast_private *ast = dev->dev_private;
+ struct ast_private *ast = to_ast_private(dev);
u8 jreg;
if (ast->chip == AST2300 || ast->chip == AST2400) {
@@ -425,18 +450,10 @@ void ast_init_3rdtx(struct drm_device *dev)
ast_init_dvo(dev);
break;
default:
- if (ast->tx_chip_type == AST_TX_SIL164)
+ if (ast->tx_chip_types & BIT(AST_TX_SIL164))
ast_init_dvo(dev);
else
ast_init_analog(dev);
}
}
}
-
-void ast_release_firmware(struct drm_device *dev)
-{
- struct ast_private *ast = dev->dev_private;
-
- release_firmware(ast->dp501_fw);
- ast->dp501_fw = NULL;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 00:27:08 +0000