diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2025-09-10 01:09:47 +0800 |
|---|---|---|
| committer | Chen-Yu Tsai <wens@csie.org> | 2025-09-12 02:26:50 +0800 |
| commit | 7aa8781f379c32c31bd78f1408a31765b2297c43 (patch) | |
| tree | 34df2784a248a109a2368b94c9d03d21a1534bf5 | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
clk: sunxi-ng: sun6i-rtc: Add A523 specifics
The A523's RTC block is backward compatible with the R329's, but it also
has a calibration function for its internal oscillator, which would
allow it to provide a clock rate closer to the desired 32.768 KHz. This
is useful on the Radxa Cubie A5E, which does not have an external 32.768
KHz crystal.
Add new compatible-specific data for it.
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250909170947.2221611-1-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun6i-rtc.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c index 0536e880b80f..f6bfeba009e8 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c +++ b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c @@ -325,6 +325,13 @@ static const struct sun6i_rtc_match_data sun50i_r329_rtc_ccu_data = { .osc32k_fanout_nparents = ARRAY_SIZE(sun50i_r329_osc32k_fanout_parents), }; +static const struct sun6i_rtc_match_data sun55i_a523_rtc_ccu_data = { + .have_ext_osc32k = true, + .have_iosc_calibration = true, + .osc32k_fanout_parents = sun50i_r329_osc32k_fanout_parents, + .osc32k_fanout_nparents = ARRAY_SIZE(sun50i_r329_osc32k_fanout_parents), +}; + static const struct of_device_id sun6i_rtc_ccu_match[] = { { .compatible = "allwinner,sun50i-h616-rtc", @@ -334,6 +341,10 @@ static const struct of_device_id sun6i_rtc_ccu_match[] = { .compatible = "allwinner,sun50i-r329-rtc", .data = &sun50i_r329_rtc_ccu_data, }, + { + .compatible = "allwinner,sun55i-a523-rtc", + .data = &sun55i_a523_rtc_ccu_data, + }, {}, }; MODULE_DEVICE_TABLE(of, sun6i_rtc_ccu_match); |