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Commit 71721ddf authored by Robert Hancock's avatar Robert Hancock Committed by Greg Kroah-Hartman
Browse files

clk: si5341: Update initialization magic 



[ Upstream commit 3c9b49b0031aefb81adfdba5ab0ddf3ca3a2cdc9 ]

Update the default register settings to include the VCO_RESET_CALCODE
settings (set by the SiLabs ClockBuilder software but not described in
the datasheet). Also update part of the initialization sequence to match
ClockBuilder and the datasheet.

Fixes: 3044a860 ("clk: Add Si5341/Si5340 driver")
Signed-off-by: default avatarRobert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20210325192643.2190069-6-robert.hancock@calian.com


Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent f894ba75

drivers/clk/clk-si5341.c

+3 −1
Original line number Diff line number Diff line
@@ -304,6 +304,8 @@ static const struct si5341_reg_default si5341_reg_defaults[] = { 
	{ 0x094A, 0x00 }, /* INx_TO_PFD_EN (disabled) */

	{ 0x0A02, 0x00 }, /* Not in datasheet */

	{ 0x0B44, 0x0F }, /* PDIV_ENB (datasheet does not mention what it is) */

	{ 0x0B57, 0x10 }, /* VCO_RESET_CALCODE (not described in datasheet) */

	{ 0x0B58, 0x05 }, /* VCO_RESET_CALCODE (not described in datasheet) */

};



/* Read and interpret a 44-bit followed by a 32-bit value in the regmap */
@@ -935,7 +937,7 @@ static const struct si5341_reg_default si5341_preamble[] = { 
	{ 0x0B25, 0x00 },

	{ 0x0502, 0x01 },

	{ 0x0505, 0x03 },

	{ 0x0957, 0x1F },

	{ 0x0957, 0x17 },

	{ 0x0B4E, 0x1A },

};