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drm/aspeed: Update INTR_STS handling

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Add interrupt clear register define for further chip support.

Signed-off-by: Tommy Haung <tommy_huang@aspeedtech.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20220302024930.18758-4-tommy_huang@aspeedtech.com
This commit is contained in:
Tommy Haung 2022-03-02 10:49:28 +08:00 committed by Joel Stanley
parent 9ae2ac4d31
commit 5e2421ce79
2 changed files with 6 additions and 1 deletions
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1
drivers/gpu/drm/aspeed/aspeed_gfx.h
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@ -12,6 +12,7 @@ struct aspeed_gfx {
struct regmap *scu;
u32 dac_reg;
u32 int_clr_reg;
u32 vga_scratch_reg;
u32 throd_val;
u32 scan_line_max;

6
drivers/gpu/drm/aspeed/aspeed_gfx_drv.c
View File

@ -61,6 +61,7 @@
struct aspeed_gfx_config {
u32 dac_reg; /* DAC register in SCU */
u32 int_clear_reg; /* Interrupt clear register */
u32 vga_scratch_reg; /* VGA scratch register in SCU */
u32 throd_val; /* Default Threshold Seting */
u32 scan_line_max; /* Max memory size of one scan line */
@ -68,6 +69,7 @@ struct aspeed_gfx_config {
static const struct aspeed_gfx_config ast2400_config = {
.dac_reg = 0x2c,
.int_clear_reg = 0x60,
.vga_scratch_reg = 0x50,
.throd_val = CRT_THROD_LOW(0x1e) | CRT_THROD_HIGH(0x12),
.scan_line_max = 64,
@ -75,6 +77,7 @@ static const struct aspeed_gfx_config ast2400_config = {
static const struct aspeed_gfx_config ast2500_config = {
.dac_reg = 0x2c,
.int_clear_reg = 0x60,
.vga_scratch_reg = 0x50,
.throd_val = CRT_THROD_LOW(0x24) | CRT_THROD_HIGH(0x3c),
.scan_line_max = 128,
@ -120,7 +123,7 @@ static irqreturn_t aspeed_gfx_irq_handler(int irq, void *data)
if (reg & CRT_CTRL_VERTICAL_INTR_STS) {
drm_crtc_handle_vblank(&priv->pipe.crtc);
writel(reg, priv->base + CRT_CTRL1);
writel(reg, priv->base + priv->int_clr_reg);
return IRQ_HANDLED;
}
@ -148,6 +151,7 @@ static int aspeed_gfx_load(struct drm_device *drm)
config = match->data;
priv->dac_reg = config->dac_reg;
priv->int_clr_reg = config->int_clear_reg;
priv->vga_scratch_reg = config->vga_scratch_reg;
priv->throd_val = config->throd_val;
priv->scan_line_max = config->scan_line_max;