mfd: rtsx: Add clock divider hook

Add callback function conv_clk_and_div_n to convert between SSC clock and its divider N. For rtl8411, the formula to calculate SSC clock divider N is different with the other card reader models.

Wei WANG committed 13 years ago

Commit ab4e8f81 parent ef85e736 files · +31 −2Browse files

Showing the changes to include/linux (2 of 6 files). Show all

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2 files

include/linux/mfd/rtsx_common.h +3 −0
include/linux/mfd/rtsx_pci.h +1 −0

include/linux/mfd/rtsx_common.h+3−0

@@ -38,6 +38,9 @@ · 37 unmodified lines
38	38	#define RTSX_SD_CARD 0
39	39	#define RTSX_MS_CARD 1
40	40
	41	+#define CLK_TO_DIV_N 0
	42	+#define DIV_N_TO_CLK 1
	43	+
41	44	struct platform_device;
42	45
43	46	struct rtsx_slot {

include/linux/mfd/rtsx_pci.h+1−0

@@ -704,6 +704,7 @@ struct pcr_ops { · 703 unmodified lines
704	704	int (switch_output_voltage)(struct rtsx_pcr pcr,
705	705	u8 voltage);
706	706	unsigned int (cd_deglitch)(struct rtsx_pcr pcr);
	707	+ int (*conv_clk_and_div_n)(int clk, int dir);
707	708	};
708	709
709	710	enum PDEV_STAT {PDEV_STAT_IDLE, PDEV_STAT_RUN};