diff options
Diffstat (limited to 'drivers/clk/davinci/psc-dm365.c')
| -rw-r--r-- | drivers/clk/davinci/psc-dm365.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/clk/davinci/psc-dm365.c b/drivers/clk/davinci/psc-dm365.c index 3ad915f37376..8c73086cc676 100644 --- a/drivers/clk/davinci/psc-dm365.c +++ b/drivers/clk/davinci/psc-dm365.c @@ -6,6 +6,7 @@ */ #include <linux/clk-provider.h> +#include <linux/clk/davinci.h> #include <linux/clk.h> #include <linux/clkdev.h> #include <linux/init.h> @@ -65,15 +66,28 @@ static const struct davinci_lpsc_clk_info dm365_psc_info[] = { LPSC(31, 0, arm, pll2_sysclk2, NULL, LPSC_ALWAYS_ENABLED), LPSC(38, 0, spi3, pll1_sysclk4, spi3_clkdev, 0), LPSC(39, 0, spi4, pll1_auxclk, spi4_clkdev, 0), - LPSC(40, 0, emac, pll2_sysclk4, emac_clkdev, 0), - LPSC(44, 1, voice_codec, pll1_sysclk3, voice_codec_clkdev, 0), - LPSC(46, 1, vpss_dac, pll1_sysclk3, vpss_dac_clkdev, 0), + LPSC(40, 0, emac, pll1_sysclk4, emac_clkdev, 0), + /* + * The TRM (ARM Subsystem User's Guide) shows two clocks input into + * voice codec module (PLL2 SYSCLK4 with a DIV2 and PLL1 SYSCLK4). Its + * not fully clear from documentation which clock should be considered + * as parent for PSC. The clock chosen here is to maintain + * compatibility with existing code in arch/arm/mach-davinci/dm365.c + */ + LPSC(44, 0, voice_codec, pll2_sysclk4, voice_codec_clkdev, 0), + /* + * Its not fully clear from TRM (ARM Subsystem User's Guide) as to what + * the parent of VPSS DAC LPSC should actually be. PLL1 SYSCLK3 feeds + * into HDVICP and MJCP. The clock chosen here is to remain compatible + * with code existing in arch/arm/mach-davinci/dm365.c + */ + LPSC(46, 0, vpss_dac, pll1_sysclk3, vpss_dac_clkdev, 0), LPSC(47, 0, vpss_master, pll1_sysclk5, vpss_master_clkdev, 0), LPSC(50, 0, mjcp, pll1_sysclk3, NULL, 0), { } }; -static int dm365_psc_init(struct device *dev, void __iomem *base) +int dm365_psc_init(struct device *dev, void __iomem *base) { return davinci_psc_register_clocks(dev, dm365_psc_info, 52, base); } |