diff options
| author | Dave Airlie <airlied@redhat.com> | 2020-07-24 01:28:09 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-07-24 01:48:05 +0300 |
| commit | 41206a073ceebc517245677a19f52ba6379b33a9 (patch) | |
| tree | 2fc35aac6abe32b99058ad55b0fc6e4d449d1056 /drivers/spi/spi-sun6i.c | |
| parent | 206739119508d5ab4b42ab480ff61a7e6cd72d7c (diff) | |
| parent | ba47d845d715a010f7b51f6f89bae32845e6acb7 (diff) | |
| download | linux-41206a073ceebc517245677a19f52ba6379b33a9.tar.xz | |
Merge v5.8-rc6 into drm-next
I've got a silent conflict + two trees based on fixes to merge.
Fixes a silent merge with amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/spi/spi-sun6i.c')
| -rw-r--r-- | drivers/spi/spi-sun6i.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c index ecea15534c42..fa11cc0e809b 100644 --- a/drivers/spi/spi-sun6i.c +++ b/drivers/spi/spi-sun6i.c @@ -198,7 +198,7 @@ static int sun6i_spi_transfer_one(struct spi_master *master, struct spi_transfer *tfr) { struct sun6i_spi *sspi = spi_master_get_devdata(master); - unsigned int mclk_rate, div, timeout; + unsigned int mclk_rate, div, div_cdr1, div_cdr2, timeout; unsigned int start, end, tx_time; unsigned int trig_level; unsigned int tx_len = 0; @@ -287,14 +287,12 @@ static int sun6i_spi_transfer_one(struct spi_master *master, * First try CDR2, and if we can't reach the expected * frequency, fall back to CDR1. */ - div = mclk_rate / (2 * tfr->speed_hz); - if (div <= (SUN6I_CLK_CTL_CDR2_MASK + 1)) { - if (div > 0) - div--; - - reg = SUN6I_CLK_CTL_CDR2(div) | SUN6I_CLK_CTL_DRS; + div_cdr1 = DIV_ROUND_UP(mclk_rate, tfr->speed_hz); + div_cdr2 = DIV_ROUND_UP(div_cdr1, 2); + if (div_cdr2 <= (SUN6I_CLK_CTL_CDR2_MASK + 1)) { + reg = SUN6I_CLK_CTL_CDR2(div_cdr2 - 1) | SUN6I_CLK_CTL_DRS; } else { - div = ilog2(mclk_rate) - ilog2(tfr->speed_hz); + div = min(SUN6I_CLK_CTL_CDR1_MASK, order_base_2(div_cdr1)); reg = SUN6I_CLK_CTL_CDR1(div); } |