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clk: tegra: Fix ISP clock modelling 

The 2 ISP clocks (ispa and ispb) share a mux/divider control. So model
this as 1 mux/divider clock and child gate clocks.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Peter De Schrijver 2017-02-23 12:44:39 +02:00 committed by Thierry Reding
parent 9326947f22
commit 34ac2c278b
4 changed files with 13 additions and 4 deletions
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1
drivers/clk/tegra/clk-id.h
View File

@ -307,6 +307,7 @@ enum clk_id {
tegra_clk_xusb_ssp_src,
tegra_clk_sclk_mux,
tegra_clk_sor_safe,
tegra_clk_ispa,
tegra_clk_max,
};

11
drivers/clk/tegra/clk-tegra-periph.c
View File

@ -168,6 +168,12 @@
0, TEGRA_PERIPH_NO_GATE, _clk_id,\
_parents##_idx, 0, _lock)
#define MUX8_NOGATE(_name, _parents, _offset, _clk_id) \
TEGRA_INIT_DATA_TABLE(_name, NULL, NULL, _parents, _offset, \
29, MASK(3), 0, 0, 8, 1, TEGRA_DIVIDER_ROUND_UP,\
0, TEGRA_PERIPH_NO_GATE, _clk_id,\
_parents##_idx, 0, NULL)
#define INT(_name, _parents, _offset, \
_clk_num, _gate_flags, _clk_id) \
TEGRA_INIT_DATA_TABLE(_name, NULL, NULL, _parents, _offset,\
@ -739,7 +745,7 @@ static struct tegra_periph_init_data periph_clks[] = {
MUX8("soc_therm", mux_clkm_pllc_pllp_plla, CLK_SOURCE_SOC_THERM, 78, TEGRA_PERIPH_ON_APB, tegra_clk_soc_therm_8),
MUX8("vi_sensor", mux_pllm_pllc2_c_c3_pllp_plla, CLK_SOURCE_VI_SENSOR, 164, TEGRA_PERIPH_NO_RESET, tegra_clk_vi_sensor_8),
MUX8("isp", mux_pllm_pllc_pllp_plla_clkm_pllc4, CLK_SOURCE_ISP, 23, TEGRA_PERIPH_ON_APB, tegra_clk_isp_8),
MUX8("isp", mux_pllc_pllp_plla1_pllc2_c3_clkm_pllc4, CLK_SOURCE_ISP, 23, TEGRA_PERIPH_ON_APB, tegra_clk_isp_9),
MUX8_NOGATE("isp", mux_pllc_pllp_plla1_pllc2_c3_clkm_pllc4, CLK_SOURCE_ISP, tegra_clk_isp_9),
MUX8("entropy", mux_pllp_clkm1, CLK_SOURCE_ENTROPY, 149, 0, tegra_clk_entropy),
MUX8("entropy", mux_pllp_clkm_clk32_plle, CLK_SOURCE_ENTROPY, 149, 0, tegra_clk_entropy_8),
MUX8("hdmi_audio", mux_pllp3_pllc_clkm, CLK_SOURCE_HDMI_AUDIO, 176, TEGRA_PERIPH_NO_RESET, tegra_clk_hdmi_audio),
@ -819,7 +825,8 @@ static struct tegra_periph_init_data gate_clks[] = {
GATE("xusb_dev", "xusb_dev_src", 95, 0, tegra_clk_xusb_dev, 0),
GATE("emc", "emc_mux", 57, 0, tegra_clk_emc, CLK_IGNORE_UNUSED),
GATE("sata_cold", "clk_m", 129, TEGRA_PERIPH_ON_APB, tegra_clk_sata_cold, 0),
GATE("ispb", "clk_m", 3, 0, tegra_clk_ispb, 0),
GATE("ispa", "isp", 23, 0, tegra_clk_ispa, 0),
GATE("ispb", "isp", 3, 0, tegra_clk_ispb, 0),
GATE("vim2_clk", "clk_m", 11, 0, tegra_clk_vim2_clk, 0),
GATE("pcie", "clk_m", 70, 0, tegra_clk_pcie, 0),
GATE("gpu", "pll_ref", 184, 0, tegra_clk_gpu, 0),

1
drivers/clk/tegra/clk-tegra210.c
View File

@ -2210,6 +2210,7 @@ static struct tegra_clk tegra210_clks[tegra_clk_max] __initdata = {
[tegra_clk_pll_c4_out3] = { .dt_id = TEGRA210_CLK_PLL_C4_OUT3, .present = true },
[tegra_clk_apb2ape] = { .dt_id = TEGRA210_CLK_APB2APE, .present = true },
[tegra_clk_pll_a1] = { .dt_id = TEGRA210_CLK_PLL_A1, .present = true },
[tegra_clk_ispa] = { .dt_id = TEGRA210_CLK_ISPA, .present = true },
};
static struct tegra_devclk devclks[] __initdata = {

4
include/dt-bindings/clock/tegra210-car.h
View File

@ -39,7 +39,7 @@
/* 20 (register bit affects vi and vi_sensor) */
/* 21 */
#define TEGRA210_CLK_USBD 22
#define TEGRA210_CLK_ISP 23
#define TEGRA210_CLK_ISPA 23
/* 24 */
/* 25 */
#define TEGRA210_CLK_DISP2 26
@ -349,7 +349,7 @@
#define TEGRA210_CLK_PLL_RE_OUT1 319
/* 320 */
/* 321 */
/* 322 */
#define TEGRA210_CLK_ISP 322
/* 323 */
/* 324 */
/* 325 */