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drm/ast: dp501: Avoid upcasting to struct ast_device

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Several functions receive an instance of struct drm_device only to
upcast it to struct ast_device. Improve type safety by passing the
AST device directly.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240911115347.899148-7-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2024-09-11 13:51:24 +02:00
parent 0b3d4b6f86
commit 620824660e
4 changed files with 27 additions and 34 deletions
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53
drivers/gpu/drm/ast/ast_dp501.c
View File

@ -21,9 +21,9 @@ static void ast_release_firmware(void *data)
ast->dp501_fw = NULL;
}
static int ast_load_dp501_microcode(struct drm_device *dev)
static int ast_load_dp501_microcode(struct ast_device *ast)
{
struct ast_device *ast = to_ast_device(dev);
struct drm_device *dev = &ast->base;
int ret;
ret = request_firmware(&ast->dp501_fw, "ast_dp501_fw.bin", dev->dev);
@ -109,10 +109,10 @@ static bool wait_fw_ready(struct ast_device *ast)
}
#endif
static bool ast_write_cmd(struct drm_device *dev, u8 data)
static bool ast_write_cmd(struct ast_device *ast, u8 data)
{
struct ast_device *ast = to_ast_device(dev);
int retry = 0;
if (wait_nack(ast)) {
send_nack(ast);
ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x9a, 0x00, data);
@ -131,10 +131,8 @@ static bool ast_write_cmd(struct drm_device *dev, u8 data)
return false;
}
static bool ast_write_data(struct drm_device *dev, u8 data)
static bool ast_write_data(struct ast_device *ast, u8 data)
{
struct ast_device *ast = to_ast_device(dev);
if (wait_nack(ast)) {
send_nack(ast);
ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x9a, 0x00, data);
@ -175,10 +173,10 @@ static void clear_cmd(struct ast_device *ast)
}
#endif
static void ast_set_dp501_video_output(struct drm_device *dev, u8 mode)
static void ast_set_dp501_video_output(struct ast_device *ast, u8 mode)
{
ast_write_cmd(dev, 0x40);
ast_write_data(dev, mode);
ast_write_cmd(ast, 0x40);
ast_write_data(ast, mode);
msleep(10);
}
@ -188,9 +186,8 @@ static u32 get_fw_base(struct ast_device *ast)
return ast_mindwm(ast, 0x1e6e2104) & 0x7fffffff;
}
bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size)
bool ast_backup_fw(struct ast_device *ast, u8 *addr, u32 size)
{
struct ast_device *ast = to_ast_device(dev);
u32 i, data;
u32 boot_address;
@ -207,9 +204,8 @@ bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size)
return false;
}
static bool ast_launch_m68k(struct drm_device *dev)
static bool ast_launch_m68k(struct ast_device *ast)
{
struct ast_device *ast = to_ast_device(dev);
u32 i, data, len = 0;
u32 boot_address;
u8 *fw_addr = NULL;
@ -226,7 +222,7 @@ static bool ast_launch_m68k(struct drm_device *dev)
len = 32*1024;
} else {
if (!ast->dp501_fw &&
ast_load_dp501_microcode(dev) < 0)
ast_load_dp501_microcode(ast) < 0)
return false;
fw_addr = (u8 *)ast->dp501_fw->data;
@ -348,9 +344,8 @@ static int ast_dp512_read_edid_block(void *data, u8 *buf, unsigned int block, si
return true;
}
static bool ast_init_dvo(struct drm_device *dev)
static bool ast_init_dvo(struct ast_device *ast)
{
struct ast_device *ast = to_ast_device(dev);
u8 jreg;
u32 data;
ast_write32(ast, 0xf004, 0x1e6e0000);
@ -421,9 +416,8 @@ static bool ast_init_dvo(struct drm_device *dev)
}
static void ast_init_analog(struct drm_device *dev)
static void ast_init_analog(struct ast_device *ast)
{
struct ast_device *ast = to_ast_device(dev);
u32 data;
/*
@ -448,28 +442,27 @@ static void ast_init_analog(struct drm_device *dev)
ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xcf, 0x00);
}
void ast_init_3rdtx(struct drm_device *dev)
void ast_init_3rdtx(struct ast_device *ast)
{
struct ast_device *ast = to_ast_device(dev);
u8 jreg;
if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast)) {
jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1, 0xff);
switch (jreg & 0x0e) {
case 0x04:
ast_init_dvo(dev);
ast_init_dvo(ast);
break;
case 0x08:
ast_launch_m68k(dev);
ast_launch_m68k(ast);
break;
case 0x0c:
ast_init_dvo(dev);
ast_init_dvo(ast);
break;
default:
if (ast->tx_chip == AST_TX_SIL164)
ast_init_dvo(dev);
ast_init_dvo(ast);
else
ast_init_analog(dev);
ast_init_analog(ast);
}
}
}
@ -485,17 +478,17 @@ static const struct drm_encoder_funcs ast_dp501_encoder_funcs = {
static void ast_dp501_encoder_helper_atomic_enable(struct drm_encoder *encoder,
struct drm_atomic_state *state)
{
struct drm_device *dev = encoder->dev;
struct ast_device *ast = to_ast_device(encoder->dev);
ast_set_dp501_video_output(dev, 1);
ast_set_dp501_video_output(ast, 1);
}
static void ast_dp501_encoder_helper_atomic_disable(struct drm_encoder *encoder,
struct drm_atomic_state *state)
{
struct drm_device *dev = encoder->dev;
struct ast_device *ast = to_ast_device(encoder->dev);
ast_set_dp501_video_output(dev, 0);
ast_set_dp501_video_output(ast, 0);
}
static const struct drm_encoder_helper_funcs ast_dp501_encoder_helper_funcs = {

4
drivers/gpu/drm/ast/ast_drv.h
View File

@ -455,8 +455,8 @@ int ast_vga_output_init(struct ast_device *ast);
int ast_sil164_output_init(struct ast_device *ast);
/* ast dp501 */
bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size);
void ast_init_3rdtx(struct drm_device *dev);
bool ast_backup_fw(struct ast_device *ast, u8 *addr, u32 size);
void ast_init_3rdtx(struct ast_device *ast);
int ast_dp501_output_init(struct ast_device *ast);
/* aspeed DP */

2
drivers/gpu/drm/ast/ast_main.c
View File

@ -110,7 +110,7 @@ static void ast_detect_tx_chip(struct ast_device *ast, bool need_post)
ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);
if (ast->dp501_fw_addr) {
/* backup firmware */
if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {
if (ast_backup_fw(ast, ast->dp501_fw_addr, 32*1024)) {
drmm_kfree(dev, ast->dp501_fw_addr);
ast->dp501_fw_addr = NULL;
}

2
drivers/gpu/drm/ast/ast_post.c
View File

@ -360,7 +360,7 @@ void ast_post_gpu(struct drm_device *dev)
else
ast_init_dram_reg(dev);
ast_init_3rdtx(dev);
ast_init_3rdtx(ast);
} else {
if (ast->tx_chip == AST_TX_SIL164)
ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xcf, 0x80); /* Enable DVO */