Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
soc: mediatek: mtk-dvfsrc: Add a new callback for calc_dram_bw
In preparation for adding support for DVFSRC Version 4, add a new
callback for calculating the dram bandwidth, assign the current
calculation algo to all of the currently supported SoCs, and use
this in __dvfsrc_set_dram_bw_v1().
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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drivers/soc/mediatek/mtk-dvfsrc.c
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drivers/soc/mediatek/mtk-dvfsrc.c
···
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struct dvfsrc_soc_data {
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const int *regs;
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const struct dvfsrc_opp_desc *opps_desc;
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u32 (*calc_dram_bw)(struct mtk_dvfsrc *dvfsrc, int type, u64 bw);
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u32 (*get_target_level)(struct mtk_dvfsrc *dvfsrc);
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u32 (*get_current_level)(struct mtk_dvfsrc *dvfsrc);
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u32 (*get_vcore_level)(struct mtk_dvfsrc *dvfsrc);
···
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dvfsrc_writel(dvfsrc, DVFSRC_VCORE, val);
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}
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static u32 dvfsrc_calc_dram_bw_v1(struct mtk_dvfsrc *dvfsrc, int type, u64 bw)
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{
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return (u32)div_u64(bw, 100 * 1000);
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}
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+
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static void __dvfsrc_set_dram_bw_v1(struct mtk_dvfsrc *dvfsrc, u32 reg,
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int type, u16 max_bw, u16 min_bw, u64 bw)
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{
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u32 new_bw = (u32)div_u64(bw, 100 * 1000);
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u32 new_bw = dvfsrc->dvd->calc_dram_bw(dvfsrc, type, bw);
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/* If bw constraints (in mbps) are defined make sure to respect them */
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if (max_bw)
···
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static const struct dvfsrc_soc_data mt8183_data = {
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.opps_desc = dvfsrc_opp_mt8183_desc,
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.regs = dvfsrc_mt8183_regs,
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.calc_dram_bw = dvfsrc_calc_dram_bw_v1,
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.get_target_level = dvfsrc_get_target_level_v1,
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.get_current_level = dvfsrc_get_current_level_v1,
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.get_vcore_level = dvfsrc_get_vcore_level_v1,
···
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static const struct dvfsrc_soc_data mt8195_data = {
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.opps_desc = dvfsrc_opp_mt8195_desc,
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.regs = dvfsrc_mt8195_regs,
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.calc_dram_bw = dvfsrc_calc_dram_bw_v1,
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.get_target_level = dvfsrc_get_target_level_v2,
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.get_current_level = dvfsrc_get_current_level_v2,
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.get_vcore_level = dvfsrc_get_vcore_level_v2,