diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/ipu_common.c | 62 | ||||
| -rw-r--r-- | drivers/video/ipu_disp.c | 10 |
2 files changed, 65 insertions, 7 deletions
diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c index a3dc695..0efb3db 100644 --- a/drivers/video/ipu_common.c +++ b/drivers/video/ipu_common.c @@ -212,17 +212,67 @@ static struct clk ipu_clk = { }; #if defined(CONFIG_MX6) || defined(CONFIG_MX53) -static struct clk ldb_clk = { +static int clk_ldb_clk_enable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(clk->enable_reg); + reg |= MXC_CCM_CCGR_CG_MASK << clk->enable_shift; + __raw_writel(reg, clk->enable_reg); + + return 0; +} + +static void clk_ldb_clk_disable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(clk->enable_reg); + reg &= ~(MXC_CCM_CCGR_CG_MASK << clk->enable_shift); + __raw_writel(reg, clk->enable_reg); +} + +static struct clk ldb_clk[2] = { + { .name = "ldb_clk", + .id = 0, .rate = 65000000, +#ifdef CONFIG_MX6 + .enable_reg = (u32 *)(CCM_BASE_ADDR + + offsetof(struct mxc_ccm_reg, CCGR3)), + .enable_shift = MXC_CCM_CCGR3_LDB_DI0_OFFSET, +#else + .enable_reg = (u32 *)(CCM_BASE_ADDR + + offsetof(struct mxc_ccm_reg, CCGR6)), + .enable_shift = MXC_CCM_CCGR6_LDB_DI0_OFFSET, +#endif + .enable = clk_ldb_clk_enable, + .disable = clk_ldb_clk_disable, .usecount = 0, + }, { + .name = "ldb_clk", + .id = 1, + .rate = 65000000, +#ifdef CONFIG_MX6 + .enable_reg = (u32 *)(CCM_BASE_ADDR + + offsetof(struct mxc_ccm_reg, CCGR3)), + .enable_shift = MXC_CCM_CCGR3_LDB_DI1_OFFSET, +#else + .enable_reg = (u32 *)(CCM_BASE_ADDR + + offsetof(struct mxc_ccm_reg, CCGR6)), + .enable_shift = MXC_CCM_CCGR6_LDB_DI1_OFFSET, +#endif + .enable = clk_ldb_clk_enable, + .disable = clk_ldb_clk_disable, + .usecount = 0, + } }; #endif /* Globals */ struct clk *g_ipu_clk; #if defined(CONFIG_MX6) || defined(CONFIG_MX53) -struct clk *g_ldb_clk; +struct clk *g_ldb_clk[2]; #endif unsigned char g_ipu_clk_enabled; struct clk *g_di_clk[2]; @@ -377,7 +427,7 @@ static int ipu_pixel_clk_set_parent(struct clk *clk, struct clk *parent) if (parent == g_ipu_clk) di_gen &= ~DI_GEN_DI_CLK_EXT; #if defined(CONFIG_MX6) || defined(CONFIG_MX53) - else if (!IS_ERR(g_di_clk[clk->id]) && parent == g_ldb_clk) + else if (!IS_ERR(g_di_clk[clk->id]) && parent == g_ldb_clk[clk->id]) di_gen |= DI_GEN_DI_CLK_EXT; #endif else @@ -474,8 +524,10 @@ int ipu_probe(void) g_ipu_clk = &ipu_clk; debug("ipu_clk = %u\n", clk_get_rate(g_ipu_clk)); #if defined(CONFIG_MX6) || defined(CONFIG_MX53) - g_ldb_clk = &ldb_clk; - debug("ldb_clk = %u\n", clk_get_rate(g_ldb_clk)); + g_ldb_clk[0] = &ldb_clk[0]; + g_ldb_clk[1] = &ldb_clk[1]; + debug("ldb_clk[0] = %u\n", clk_get_rate(g_ldb_clk[0])); + debug("ldb_clk[1] = %u\n", clk_get_rate(g_ldb_clk[1])); #endif ipu_reset(); diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c index 3c24863..5a8727f 100644 --- a/drivers/video/ipu_disp.c +++ b/drivers/video/ipu_disp.c @@ -49,7 +49,7 @@ int g_di1_tvout; extern struct clk *g_ipu_clk; #if defined(CONFIG_MX6) || defined(CONFIG_MX53) -extern struct clk *g_ldb_clk; +extern struct clk *g_ldb_clk[2]; #endif extern struct clk *g_di_clk[2]; extern struct clk *g_pixel_clk[2]; @@ -647,6 +647,9 @@ void ipu_dp_dc_enable(ipu_channel_t channel) __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); clk_enable(g_pixel_clk[di]); +#if defined(CONFIG_MX6) || defined(CONFIG_MX53) + clk_enable(g_ldb_clk[di]); +#endif } static unsigned char dc_swap; @@ -737,6 +740,9 @@ void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap) /* Clock is already off because it must be done quickly, but we need to fix the ref count */ clk_disable(g_pixel_clk[g_dc_di_assignment[dc_chan]]); +#if defined(CONFIG_MX6) || defined(CONFIG_MX53) + clk_disable(g_ldb_clk[g_dc_di_assignment[dc_chan]]); +#endif } } @@ -888,7 +894,7 @@ int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk, } } #if defined(CONFIG_MX6) || defined(CONFIG_MX53) - clk_set_parent(g_pixel_clk[disp], g_ldb_clk); + clk_set_parent(g_pixel_clk[disp], g_ldb_clk[disp]); #endif } else { if (clk_get_usecount(g_pixel_clk[disp]) != 0) |