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clk: qcom: Add lpass audio clock controller driver for SC8280XP

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Add support for the lpass audio clock controller found on SC8280XP based
devices. This would allow lpass peripheral loader drivers to control the
clocks and bring the subsystems out of reset.

Currently this patch only supports resets as the Q6DSP is in control of
LPASS IP which manages most of the clocks via Q6PRM service on GPR rpmsg
channel.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230608125315.11454-5-srinivas.kandagatla@linaro.org
This commit is contained in:
Srinivas Kandagatla 2023-06-08 13:53:13 +01:00 committed by Bjorn Andersson
parent a5c9c3ba24
commit c2ef1ec97c
1 changed files with 23 additions and 0 deletions
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23
drivers/clk/qcom/lpasscc-sc8280xp.c
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@ -15,6 +15,26 @@
#include "common.h"
#include "reset.h"
static const struct qcom_reset_map lpass_audiocc_sc8280xp_resets[] = {
[LPASS_AUDIO_SWR_RX_CGCR] = { 0xa0, 1 },
[LPASS_AUDIO_SWR_WSA_CGCR] = { 0xb0, 1 },
[LPASS_AUDIO_SWR_WSA2_CGCR] = { 0xd8, 1 },
};
static struct regmap_config lpass_audiocc_sc8280xp_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.name = "lpass-audio-csr",
.max_register = 0x1000,
};
static const struct qcom_cc_desc lpass_audiocc_sc8280xp_reset_desc = {
.config = &lpass_audiocc_sc8280xp_regmap_config,
.resets = lpass_audiocc_sc8280xp_resets,
.num_resets = ARRAY_SIZE(lpass_audiocc_sc8280xp_resets),
};
static const struct qcom_reset_map lpasscc_sc8280xp_resets[] = {
[LPASS_AUDIO_SWR_TX_CGCR] = { 0xc010, 1 },
};
@ -35,6 +55,9 @@ static const struct qcom_cc_desc lpasscc_sc8280xp_reset_desc = {
static const struct of_device_id lpasscc_sc8280xp_match_table[] = {
{
.compatible = "qcom,sc8280xp-lpassaudiocc",
.data = &lpass_audiocc_sc8280xp_reset_desc,
}, {
.compatible = "qcom,sc8280xp-lpasscc",
.data = &lpasscc_sc8280xp_reset_desc,
},