diff options
| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2023-04-28 08:18:49 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2023-04-28 08:52:23 +0200 |
| commit | 8c6c78ee3b3330cf8a00a3c6bdecc18d42e969d7 (patch) | |
| tree | 984d190818837201dec1412a5a97192fe856631c /drivers/i3c | |
| parent | f2539c20791eb474ae083f60a572f207ffbc3a67 (diff) | |
| download | linux-8c6c78ee3b3330cf8a00a3c6bdecc18d42e969d7.tar.gz linux-8c6c78ee3b3330cf8a00a3c6bdecc18d42e969d7.tar.bz2 linux-8c6c78ee3b3330cf8a00a3c6bdecc18d42e969d7.zip | |
i3c: ast2600: fix register setting for 545 ohm pullups
The 2k register setting is zero, OR-ing it in doesn't parallel the 2k
and 750 ohm pullups. We need a separate value for the 545 ohm setting.
Reported-by: Lukwinski Zbigniew <zbigniew.lukwinski@linux.intel.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230428001849.1775559-1-jk@codeconstruct.com.au
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/i3c')
| -rw-r--r-- | drivers/i3c/master/ast2600-i3c-master.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i3c/master/ast2600-i3c-master.c b/drivers/i3c/master/ast2600-i3c-master.c index 6715d1f044b6..b72c12c5168f 100644 --- a/drivers/i3c/master/ast2600-i3c-master.c +++ b/drivers/i3c/master/ast2600-i3c-master.c @@ -21,6 +21,7 @@ #define AST2600_I3CG_REG0_SDA_PULLUP_EN_MASK GENMASK(29, 28) #define AST2600_I3CG_REG0_SDA_PULLUP_EN_2K (0x0 << 28) #define AST2600_I3CG_REG0_SDA_PULLUP_EN_750 (0x2 << 28) +#define AST2600_I3CG_REG0_SDA_PULLUP_EN_545 (0x3 << 28) #define AST2600_I3CG_REG1_I2C_MODE BIT(0) #define AST2600_I3CG_REG1_TEST_MODE BIT(1) @@ -62,8 +63,7 @@ static int ast2600_i3c_pullup_to_reg(unsigned int ohms, u32 *regp) reg = AST2600_I3CG_REG0_SDA_PULLUP_EN_750; break; case 545: - reg = AST2600_I3CG_REG0_SDA_PULLUP_EN_2K | - AST2600_I3CG_REG0_SDA_PULLUP_EN_750; + reg = AST2600_I3CG_REG0_SDA_PULLUP_EN_545; break; default: return -EINVAL; |