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path: root/drivers/video/omap2/dss/dsi.c
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Diffstat (limited to 'drivers/video/omap2/dss/dsi.c')
-rw-r--r--drivers/video/omap2/dss/dsi.c223
1 files changed, 151 insertions, 72 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 6056b27cf73..a820c37e323 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -47,63 +47,73 @@
#define DSI_CATCH_MISSING_TE
-struct dsi_reg { u16 idx; };
+struct dsi_reg { u16 module; u16 idx; };
-#define DSI_REG(idx) ((const struct dsi_reg) { idx })
+#define DSI_REG(mod, idx) ((const struct dsi_reg) { mod, idx })
-#define DSI_SZ_REGS SZ_1K
/* DSI Protocol Engine */
-#define DSI_REVISION DSI_REG(0x0000)
-#define DSI_SYSCONFIG DSI_REG(0x0010)
-#define DSI_SYSSTATUS DSI_REG(0x0014)
-#define DSI_IRQSTATUS DSI_REG(0x0018)
-#define DSI_IRQENABLE DSI_REG(0x001C)
-#define DSI_CTRL DSI_REG(0x0040)
-#define DSI_GNQ DSI_REG(0x0044)
-#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048)
-#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C)
-#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050)
-#define DSI_CLK_CTRL DSI_REG(0x0054)
-#define DSI_TIMING1 DSI_REG(0x0058)
-#define DSI_TIMING2 DSI_REG(0x005C)
-#define DSI_VM_TIMING1 DSI_REG(0x0060)
-#define DSI_VM_TIMING2 DSI_REG(0x0064)
-#define DSI_VM_TIMING3 DSI_REG(0x0068)
-#define DSI_CLK_TIMING DSI_REG(0x006C)
-#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070)
-#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074)
-#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078)
-#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C)
-#define DSI_VM_TIMING4 DSI_REG(0x0080)
-#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084)
-#define DSI_VM_TIMING5 DSI_REG(0x0088)
-#define DSI_VM_TIMING6 DSI_REG(0x008C)
-#define DSI_VM_TIMING7 DSI_REG(0x0090)
-#define DSI_STOPCLK_TIMING DSI_REG(0x0094)
-#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20))
-#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20))
-#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20))
-#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20))
-#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20))
-#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20))
-#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20))
+#define DSI_PROTO 0
+#define DSI_PROTO_SZ 0x200
+
+#define DSI_REVISION DSI_REG(DSI_PROTO, 0x0000)
+#define DSI_SYSCONFIG DSI_REG(DSI_PROTO, 0x0010)
+#define DSI_SYSSTATUS DSI_REG(DSI_PROTO, 0x0014)
+#define DSI_IRQSTATUS DSI_REG(DSI_PROTO, 0x0018)
+#define DSI_IRQENABLE DSI_REG(DSI_PROTO, 0x001C)
+#define DSI_CTRL DSI_REG(DSI_PROTO, 0x0040)
+#define DSI_GNQ DSI_REG(DSI_PROTO, 0x0044)
+#define DSI_COMPLEXIO_CFG1 DSI_REG(DSI_PROTO, 0x0048)
+#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(DSI_PROTO, 0x004C)
+#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(DSI_PROTO, 0x0050)
+#define DSI_CLK_CTRL DSI_REG(DSI_PROTO, 0x0054)
+#define DSI_TIMING1 DSI_REG(DSI_PROTO, 0x0058)
+#define DSI_TIMING2 DSI_REG(DSI_PROTO, 0x005C)
+#define DSI_VM_TIMING1 DSI_REG(DSI_PROTO, 0x0060)
+#define DSI_VM_TIMING2 DSI_REG(DSI_PROTO, 0x0064)
+#define DSI_VM_TIMING3 DSI_REG(DSI_PROTO, 0x0068)
+#define DSI_CLK_TIMING DSI_REG(DSI_PROTO, 0x006C)
+#define DSI_TX_FIFO_VC_SIZE DSI_REG(DSI_PROTO, 0x0070)
+#define DSI_RX_FIFO_VC_SIZE DSI_REG(DSI_PROTO, 0x0074)
+#define DSI_COMPLEXIO_CFG2 DSI_REG(DSI_PROTO, 0x0078)
+#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(DSI_PROTO, 0x007C)
+#define DSI_VM_TIMING4 DSI_REG(DSI_PROTO, 0x0080)
+#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(DSI_PROTO, 0x0084)
+#define DSI_VM_TIMING5 DSI_REG(DSI_PROTO, 0x0088)
+#define DSI_VM_TIMING6 DSI_REG(DSI_PROTO, 0x008C)
+#define DSI_VM_TIMING7 DSI_REG(DSI_PROTO, 0x0090)
+#define DSI_STOPCLK_TIMING DSI_REG(DSI_PROTO, 0x0094)
+#define DSI_VC_CTRL(n) DSI_REG(DSI_PROTO, 0x0100 + (n * 0x20))
+#define DSI_VC_TE(n) DSI_REG(DSI_PROTO, 0x0104 + (n * 0x20))
+#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(DSI_PROTO, 0x0108 + (n * 0x20))
+#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(DSI_PROTO, 0x010C + (n * 0x20))
+#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(DSI_PROTO, 0x0110 + (n * 0x20))
+#define DSI_VC_IRQSTATUS(n) DSI_REG(DSI_PROTO, 0x0118 + (n * 0x20))
+#define DSI_VC_IRQENABLE(n) DSI_REG(DSI_PROTO, 0x011C + (n * 0x20))
/* DSIPHY_SCP */
-#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000)
-#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004)
-#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008)
-#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014)
-#define DSI_DSIPHY_CFG10 DSI_REG(0x200 + 0x0028)
+#define DSI_PHY 1
+#define DSI_PHY_OFFSET 0x200
+#define DSI_PHY_SZ 0x40
+
+#define DSI_DSIPHY_CFG0 DSI_REG(DSI_PHY, 0x0000)
+#define DSI_DSIPHY_CFG1 DSI_REG(DSI_PHY, 0x0004)
+#define DSI_DSIPHY_CFG2 DSI_REG(DSI_PHY, 0x0008)
+#define DSI_DSIPHY_CFG5 DSI_REG(DSI_PHY, 0x0014)
+#define DSI_DSIPHY_CFG10 DSI_REG(DSI_PHY, 0x0028)
/* DSI_PLL_CTRL_SCP */
-#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000)
-#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004)
-#define DSI_PLL_GO DSI_REG(0x300 + 0x0008)
-#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C)
-#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010)
+#define DSI_PLL 2
+#define DSI_PLL_OFFSET 0x300
+#define DSI_PLL_SZ 0x20
+
+#define DSI_PLL_CONTROL DSI_REG(DSI_PLL, 0x0000)
+#define DSI_PLL_STATUS DSI_REG(DSI_PLL, 0x0004)
+#define DSI_PLL_GO DSI_REG(DSI_PLL, 0x0008)
+#define DSI_PLL_CONFIGURATION1 DSI_REG(DSI_PLL, 0x000C)
+#define DSI_PLL_CONFIGURATION2 DSI_REG(DSI_PLL, 0x0010)
#define REG_GET(dsidev, idx, start, end) \
FLD_GET(dsi_read_reg(dsidev, idx), start, end)
@@ -277,7 +287,9 @@ struct dsi_clk_calc_ctx {
struct dsi_data {
struct platform_device *pdev;
- void __iomem *base;
+ void __iomem *proto_base;
+ void __iomem *phy_base;
+ void __iomem *pll_base;
int module_id;
@@ -297,7 +309,8 @@ struct dsi_data {
struct {
enum dsi_vc_source source;
struct omap_dss_device *dssdev;
- enum fifo_size fifo_size;
+ enum fifo_size tx_fifo_size;
+ enum fifo_size rx_fifo_size;
int vc_id;
} vc[4];
@@ -413,16 +426,32 @@ static inline void dsi_write_reg(struct platform_device *dsidev,
const struct dsi_reg idx, u32 val)
{
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+ void __iomem *base;
+
+ switch(idx.module) {
+ case DSI_PROTO: base = dsi->proto_base; break;
+ case DSI_PHY: base = dsi->phy_base; break;
+ case DSI_PLL: base = dsi->pll_base; break;
+ default: return;
+ }
- __raw_writel(val, dsi->base + idx.idx);
+ __raw_writel(val, base + idx.idx);
}
static inline u32 dsi_read_reg(struct platform_device *dsidev,
const struct dsi_reg idx)
{
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+ void __iomem *base;
- return __raw_readl(dsi->base + idx.idx);
+ switch(idx.module) {
+ case DSI_PROTO: base = dsi->proto_base; break;
+ case DSI_PHY: base = dsi->phy_base; break;
+ case DSI_PLL: base = dsi->pll_base; break;
+ default: return 0;
+ }
+
+ return __raw_readl(base + idx.idx);
}
static void dsi_bus_lock(struct omap_dss_device *dssdev)
@@ -1129,7 +1158,8 @@ static int dsi_regulator_init(struct platform_device *dsidev)
vdds_dsi = devm_regulator_get(&dsi->pdev->dev, "VCXIO");
if (IS_ERR(vdds_dsi)) {
- DSSERR("can't get VDDS_DSI regulator\n");
+ if (PTR_ERR(vdds_dsi) != -EPROBE_DEFER)
+ DSSERR("can't get VDDS_DSI regulator\n");
return PTR_ERR(vdds_dsi);
}
@@ -2427,14 +2457,14 @@ static void dsi_config_tx_fifo(struct platform_device *dsidev,
int add = 0;
int i;
- dsi->vc[0].fifo_size = size1;
- dsi->vc[1].fifo_size = size2;
- dsi->vc[2].fifo_size = size3;
- dsi->vc[3].fifo_size = size4;
+ dsi->vc[0].tx_fifo_size = size1;
+ dsi->vc[1].tx_fifo_size = size2;
+ dsi->vc[2].tx_fifo_size = size3;
+ dsi->vc[3].tx_fifo_size = size4;
for (i = 0; i < 4; i++) {
u8 v;
- int size = dsi->vc[i].fifo_size;
+ int size = dsi->vc[i].tx_fifo_size;
if (add + size > 4) {
DSSERR("Illegal FIFO configuration\n");
@@ -2460,14 +2490,14 @@ static void dsi_config_rx_fifo(struct platform_device *dsidev,
int add = 0;
int i;
- dsi->vc[0].fifo_size = size1;
- dsi->vc[1].fifo_size = size2;
- dsi->vc[2].fifo_size = size3;
- dsi->vc[3].fifo_size = size4;
+ dsi->vc[0].rx_fifo_size = size1;
+ dsi->vc[1].rx_fifo_size = size2;
+ dsi->vc[2].rx_fifo_size = size3;
+ dsi->vc[3].rx_fifo_size = size4;
for (i = 0; i < 4; i++) {
u8 v;
- int size = dsi->vc[i].fifo_size;
+ int size = dsi->vc[i].rx_fifo_size;
if (add + size > 4) {
DSSERR("Illegal FIFO configuration\n");
@@ -2920,7 +2950,7 @@ static int dsi_vc_send_long(struct platform_device *dsidev, int channel,
DSSDBG("dsi_vc_send_long, %d bytes\n", len);
/* len + header */
- if (dsi->vc[channel].fifo_size * 32 * 4 < len + 4) {
+ if (dsi->vc[channel].tx_fifo_size * 32 * 4 < len + 4) {
DSSERR("unable to send long packet: packet too long.\n");
return -EINVAL;
}
@@ -5345,8 +5375,9 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
{
u32 rev;
int r, i;
- struct resource *dsi_mem;
struct dsi_data *dsi;
+ struct resource *res;
+ struct resource temp_res;
dsi = devm_kzalloc(&dsidev->dev, sizeof(*dsi), GFP_KERNEL);
if (!dsi)
@@ -5376,16 +5407,64 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
dsi->te_timer.function = dsi_te_timeout;
dsi->te_timer.data = 0;
#endif
- dsi_mem = platform_get_resource(dsi->pdev, IORESOURCE_MEM, 0);
- if (!dsi_mem) {
- DSSERR("can't get IORESOURCE_MEM DSI\n");
- return -EINVAL;
+
+ res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "proto");
+ if (!res) {
+ res = platform_get_resource(dsidev, IORESOURCE_MEM, 0);
+ if (!res) {
+ DSSERR("can't get IORESOURCE_MEM DSI\n");
+ return -EINVAL;
+ }
+
+ temp_res.start = res->start;
+ temp_res.end = temp_res.start + DSI_PROTO_SZ - 1;
+ res = &temp_res;
+ }
+
+ dsi->proto_base = devm_ioremap(&dsidev->dev, res->start,
+ resource_size(res));
+ if (!dsi->proto_base) {
+ DSSERR("can't ioremap DSI protocol engine\n");
+ return -ENOMEM;
+ }
+
+ res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "phy");
+ if (!res) {
+ res = platform_get_resource(dsidev, IORESOURCE_MEM, 0);
+ if (!res) {
+ DSSERR("can't get IORESOURCE_MEM DSI\n");
+ return -EINVAL;
+ }
+
+ temp_res.start = res->start + DSI_PHY_OFFSET;
+ temp_res.end = temp_res.start + DSI_PHY_SZ - 1;
+ res = &temp_res;
+ }
+
+ dsi->phy_base = devm_ioremap(&dsidev->dev, res->start,
+ resource_size(res));
+ if (!dsi->proto_base) {
+ DSSERR("can't ioremap DSI PHY\n");
+ return -ENOMEM;
+ }
+
+ res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "pll");
+ if (!res) {
+ res = platform_get_resource(dsidev, IORESOURCE_MEM, 0);
+ if (!res) {
+ DSSERR("can't get IORESOURCE_MEM DSI\n");
+ return -EINVAL;
+ }
+
+ temp_res.start = res->start + DSI_PLL_OFFSET;
+ temp_res.end = temp_res.start + DSI_PLL_SZ - 1;
+ res = &temp_res;
}
- dsi->base = devm_ioremap(&dsidev->dev, dsi_mem->start,
- resource_size(dsi_mem));
- if (!dsi->base) {
- DSSERR("can't ioremap DSI\n");
+ dsi->pll_base = devm_ioremap(&dsidev->dev, res->start,
+ resource_size(res));
+ if (!dsi->proto_base) {
+ DSSERR("can't ioremap DSI PLL\n");
return -ENOMEM;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-01 04:44:50 +0000