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remoteproc: mediatek: Support mt8195 scp

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The SCP clock design is changed on mt8195 that doesn't need to control
SCP clock on kernel side.

Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210924033935.2127-5-tinghan.shen@mediatek.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Tinghan Shen 2021-09-24 11:39:33 +08:00 committed by Bjorn Andersson
parent f4d7e6f6eb
commit 79111df414
2 changed files with 44 additions and 5 deletions
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1
drivers/remoteproc/mtk_common.h
View File

@ -72,6 +72,7 @@ struct scp_ipi_desc {
struct mtk_scp;
struct mtk_scp_of_data {
int (*scp_clk_get)(struct mtk_scp *scp);
int (*scp_before_load)(struct mtk_scp *scp);
void (*scp_irq_handler)(struct mtk_scp *scp);
void (*scp_reset_assert)(struct mtk_scp *scp);

48
drivers/remoteproc/mtk_scp.c
View File

@ -312,6 +312,32 @@ static int scp_elf_read_ipi_buf_addr(struct mtk_scp *scp,
return -ENOENT;
}
static int mt8183_scp_clk_get(struct mtk_scp *scp)
{
struct device *dev = scp->dev;
int ret = 0;
scp->clk = devm_clk_get(dev, "main");
if (IS_ERR(scp->clk)) {
dev_err(dev, "Failed to get clock\n");
ret = PTR_ERR(scp->clk);
}
return ret;
}
static int mt8192_scp_clk_get(struct mtk_scp *scp)
{
return mt8183_scp_clk_get(scp);
}
static int mt8195_scp_clk_get(struct mtk_scp *scp)
{
scp->clk = NULL;
return 0;
}
static int mt8183_scp_before_load(struct mtk_scp *scp)
{
/* Clear SCP to host interrupt */
@ -785,12 +811,9 @@ static int scp_probe(struct platform_device *pdev)
if (ret)
goto destroy_mutex;
scp->clk = devm_clk_get(dev, "main");
if (IS_ERR(scp->clk)) {
dev_err(dev, "Failed to get clock\n");
ret = PTR_ERR(scp->clk);
ret = scp->data->scp_clk_get(scp);
if (ret)
goto release_dev_mem;
}
/* register SCP initialization IPI */
ret = scp_ipi_register(scp, SCP_IPI_INIT, scp_init_ipi_handler, scp);
@ -852,6 +875,7 @@ static int scp_remove(struct platform_device *pdev)
}
static const struct mtk_scp_of_data mt8183_of_data = {
.scp_clk_get = mt8183_scp_clk_get,
.scp_before_load = mt8183_scp_before_load,
.scp_irq_handler = mt8183_scp_irq_handler,
.scp_reset_assert = mt8183_scp_reset_assert,
@ -864,6 +888,19 @@ static const struct mtk_scp_of_data mt8183_of_data = {
};
static const struct mtk_scp_of_data mt8192_of_data = {
.scp_clk_get = mt8192_scp_clk_get,
.scp_before_load = mt8192_scp_before_load,
.scp_irq_handler = mt8192_scp_irq_handler,
.scp_reset_assert = mt8192_scp_reset_assert,
.scp_reset_deassert = mt8192_scp_reset_deassert,
.scp_stop = mt8192_scp_stop,
.scp_da_to_va = mt8192_scp_da_to_va,
.host_to_scp_reg = MT8192_GIPC_IN_SET,
.host_to_scp_int_bit = MT8192_HOST_IPC_INT_BIT,
};
static const struct mtk_scp_of_data mt8195_of_data = {
.scp_clk_get = mt8195_scp_clk_get,
.scp_before_load = mt8192_scp_before_load,
.scp_irq_handler = mt8192_scp_irq_handler,
.scp_reset_assert = mt8192_scp_reset_assert,
@ -877,6 +914,7 @@ static const struct mtk_scp_of_data mt8192_of_data = {
static const struct of_device_id mtk_scp_of_match[] = {
{ .compatible = "mediatek,mt8183-scp", .data = &mt8183_of_data },
{ .compatible = "mediatek,mt8192-scp", .data = &mt8192_of_data },
{ .compatible = "mediatek,mt8195-scp", .data = &mt8195_of_data },
{},
};
MODULE_DEVICE_TABLE(of, mtk_scp_of_match);