Commit 79111df4 authored by Tinghan Shen's avatar Tinghan Shen Committed by Bjorn Andersson
Browse files

remoteproc: mediatek: Support mt8195 scp 



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

Signed-off-by: default avatarTinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210924033935.2127-5-tinghan.shen@mediatek.com


Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent f4d7e6f6

drivers/remoteproc/mtk_common.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

drivers/remoteproc/mtk_scp.c

+43 −5
Original line number Diff line number Diff line
@@ -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);