diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/ipu_common.c | 42 | ||||
| -rw-r--r-- | drivers/video/ipu_disp.c | 30 | ||||
| -rw-r--r-- | drivers/video/ipu_regs.h | 4 |
3 files changed, 49 insertions, 27 deletions
diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c index 0a47117..798f7d0 100644 --- a/drivers/video/ipu_common.c +++ b/drivers/video/ipu_common.c @@ -4,9 +4,9 @@ * (C) Copyright 2010 * Stefano Babic, DENX Software Engineering, sbabic@denx.de * - * Linux IPU driver for MX51: + * Linux IPU driver * - * (C) Copyright 2005-2010 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2011 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -34,7 +34,6 @@ #include <linux/err.h> #include <asm/io.h> #include <asm/errno.h> -#include <asm/arch/mx51.h> #include "ipu_regs.h" extern struct mxc_ccm_reg *mxc_ccm; @@ -172,7 +171,9 @@ static void clk_ipu_disable(struct clk *clk) static struct clk ipu_clk = { .name = "ipu_clk", - .rate = 133000000, +#if defined(CONFIG_IPU_CLKRATE) + .rate = CONFIG_IPU_CLKRATE, +#endif .enable = clk_ipu_enable, .disable = clk_ipu_disable, .usecount = 0, @@ -337,6 +338,17 @@ static struct clk pixel_clk[] = { }, }; +static struct clk di_clk[] = { + { + .name = "ipu_di_clk", + .id = 0, + }, + { + .name = "ipu_di_clk", + .id = 1, + }, +}; + /* * This function resets IPU */ @@ -360,11 +372,12 @@ void ipu_reset(void) * * @return Returns 0 on success or negative error code on error */ -int ipu_probe(void) +int ipu_probe(int di, ipu_di_clk_parent_t di_clk_parent, int di_clk_val) { unsigned long ipu_base; - u32 temp; +#if defined(CONFIG_MXC_HSC) + u32 temp; u32 *reg_hsc_mcd = (u32 *)MIPI_HSC_BASE_ADDR; u32 *reg_hsc_mxt_conf = (u32 *)(MIPI_HSC_BASE_ADDR + 0x800); @@ -376,6 +389,7 @@ int ipu_probe(void) temp = __raw_readl(reg_hsc_mxt_conf); __raw_writel(temp | 0x10000, reg_hsc_mxt_conf); +#endif ipu_base = IPU_CTRL_BASE_ADDR; ipu_cpmem_base = (u32 *)(ipu_base + IPU_CPMEM_REG_BASE); @@ -384,17 +398,23 @@ int ipu_probe(void) g_pixel_clk[0] = &pixel_clk[0]; g_pixel_clk[1] = &pixel_clk[1]; + g_di_clk[0] = &di_clk[0]; + g_di_clk[1] = &di_clk[1]; + g_di_clk[di]->rate = di_clk_val; + g_ipu_clk = &ipu_clk; debug("ipu_clk = %u\n", clk_get_rate(g_ipu_clk)); ipu_reset(); - clk_set_parent(g_pixel_clk[0], g_ipu_clk); - clk_set_parent(g_pixel_clk[1], g_ipu_clk); - clk_enable(g_ipu_clk); + if (di_clk_parent == DI_PCLK_LDB) { + clk_set_parent(g_pixel_clk[di], g_di_clk[di]); + } else { + clk_set_parent(g_pixel_clk[0], g_ipu_clk); + clk_set_parent(g_pixel_clk[1], g_ipu_clk); + } - g_di_clk[0] = NULL; - g_di_clk[1] = NULL; + clk_enable(g_ipu_clk); __raw_writel(0x807FFFFF, IPU_MEM_RST); while (__raw_readl(IPU_MEM_RST) & 0x80000000) diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c index 8ea12f8..8f9c583 100644 --- a/drivers/video/ipu_disp.c +++ b/drivers/video/ipu_disp.c @@ -4,9 +4,9 @@ * (C) Copyright 2010 * Stefano Babic, DENX Software Engineering, sbabic@denx.de * - * Linux IPU driver for MX51: + * Linux IPU driver * - * (C) Copyright 2005-2010 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2011 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -928,18 +928,20 @@ int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk, rounded_pixel_clk = clk_round_rate(g_pixel_clk[disp], pixel_clk); - div = clk_get_rate(di_parent) / - rounded_pixel_clk; - if (div % 2) - div++; - if (clk_get_rate(di_parent) != div * - rounded_pixel_clk) - clk_set_rate(di_parent, - div * rounded_pixel_clk); - udelay(10000); - clk_set_rate(g_di_clk[disp], - 2 * rounded_pixel_clk); - udelay(10000); + if (di_parent != NULL) { + div = clk_get_rate(di_parent) / + rounded_pixel_clk; + if (div % 2) + div++; + if (clk_get_rate(di_parent) != div * + rounded_pixel_clk) + clk_set_rate(di_parent, + div * rounded_pixel_clk); + udelay(10000); + clk_set_rate(g_di_clk[disp], + 2 * rounded_pixel_clk); + udelay(10000); + } } } clk_set_parent(g_pixel_clk[disp], g_di_clk[disp]); diff --git a/drivers/video/ipu_regs.h b/drivers/video/ipu_regs.h index 762f804..bfa10f5 100644 --- a/drivers/video/ipu_regs.h +++ b/drivers/video/ipu_regs.h @@ -4,9 +4,9 @@ * (C) Copyright 2010 * Stefano Babic, DENX Software Engineering, sbabic@denx.de * - * Linux IPU driver for MX51: + * Linux IPU driver: * - * (C) Copyright 2005-2010 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2011 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. |