diff options
| author | Biju Das <[email protected]> | 2022-09-28 12:07:55 +0100 |
|---|---|---|
| committer | Ulf Hansson <[email protected]> | 2022-10-07 10:53:22 +0200 |
| commit | f0c00454bf78975925eccc9737faaa4d4951edbf (patch) | |
| tree | adaaf7473fd0b82ec6b656d5d9aa2158d68d5d4f /drivers/fpga/fpga-mgr.c | |
| parent | 07d2872bf4c864eb83d034263c155746a2fb7a3b (diff) | |
mmc: renesas_sdhi: Fix rounding errors
Due to clk rounding errors on RZ/G2L platforms, it selects a clock source
with a lower clock rate compared to a higher one.
For eg: The rounding error (533333333 Hz / 4 * 4 = 533333332 Hz < 5333333
33 Hz) selects a clk source of 400 MHz instead of 533.333333 MHz.
This patch fixes this issue by adding a margin of (1/1024) higher to
the clock rate.
Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Tested-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
Fixes: bb6d3fa98a41 ("clk: renesas: rcar-gen3: Switch to new SD clock handling")
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-mgr.c')
0 files changed, 0 insertions, 0 deletions