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The i.MX clock updates for 4.4: 

- A couple of fixes on i.MX31 and i.MX35 clock initialization functions
    which makes mxc_timer_init() currently be called twice for DT boot.
  - Increase i.MX6UL AXI bus clock rate to 264MHz which is the optimal
    design target.
  - Add a few missing clocks, ADC clock for i.MX7D, OCOTP clock for
    Vybrid, and SPDIF_GCLK for i.MX6.
  - A series from Lucas to fix early debug UART clock setup.  This is
    currently a one-off fix for i.MX platform, and can be extended to
    become a generic solution later.
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Merge tag 'imx-clk-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next

Pull i.MX updates from Shawn Guo:

"The i.MX clock updates for 4.4:
 - A couple of fixes on i.MX31 and i.MX35 clock initialization functions
   which makes mxc_timer_init() currently be called twice for DT boot.
 - Increase i.MX6UL AXI bus clock rate to 264MHz which is the optimal
   design target.
 - Add a few missing clocks, ADC clock for i.MX7D, OCOTP clock for
   Vybrid, and SPDIF_GCLK for i.MX6.
 - A series from Lucas to fix early debug UART clock setup.  This is
   currently a one-off fix for i.MX platform, and can be extended to
   become a generic solution later."

* tag 'imx-clk-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx6: Add SPDIF_GCLK clock in clock tree
  clk: imx7d: add ADC root clock
  clk: imx31: Do not call mxc_timer_init twice when booting with DT
  clk: imx7d: retain early UART clocks during kernel init
  clk: imx6: retain early UART clocks during kernel init
  clk: imx5: retain early UART clocks during kernel init
  clk: imx35: retain early UART clocks during kernel init
  clk: imx31: retain early UART clocks during kernel init
  clk: imx27: retain early UART clocks during kernel init
  clk: imx25: retain early UART clocks during kernel init
  clk: imx: add common logic to detect early UART usage
  clk: imx35: Do not call mxc_timer_init twice when booting with DT
  clk: clk-vf610: Add clock for Vybrid OCOTP controller
  clk: imx: increase AXI clock rate to 264MHz for i.MX6UL
hifive-unleashed-5.1
Stephen Boyd 2015-10-16 11:35:19 -07:00
parent 0a4807c2f9 84a87250ee
commit 3ce6c6e541
18 changed files with 219 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/clk/imx/clk-imx25.c
View File

@ -86,6 +86,16 @@ enum mx25_clks {
static struct clk *clk[clk_max];
static struct clk ** const uart_clks[] __initconst = {
&clk[uart_ipg_per],
&clk[uart1_ipg],
&clk[uart2_ipg],
&clk[uart3_ipg],
&clk[uart4_ipg],
&clk[uart5_ipg],
NULL
};
static int __init __mx25_clocks_init(unsigned long osc_rate,
void __iomem *ccm_base)
{
@ -233,6 +243,8 @@ static int __init __mx25_clocks_init(unsigned long osc_rate,
*/
clk_set_parent(clk[cko_sel], clk[ipg]);
imx_register_uart_clocks(uart_clks);
return 0;
}

13
drivers/clk/imx/clk-imx27.c
View File

@ -47,6 +47,17 @@ static const char *ssi_sel_clks[] = { "spll_gate", "mpll", };
static struct clk *clk[IMX27_CLK_MAX];
static struct clk_onecell_data clk_data;
static struct clk ** const uart_clks[] __initconst = {
&clk[IMX27_CLK_PER1_GATE],
&clk[IMX27_CLK_UART1_IPG_GATE],
&clk[IMX27_CLK_UART2_IPG_GATE],
&clk[IMX27_CLK_UART3_IPG_GATE],
&clk[IMX27_CLK_UART4_IPG_GATE],
&clk[IMX27_CLK_UART5_IPG_GATE],
&clk[IMX27_CLK_UART6_IPG_GATE],
NULL
};
static void __init _mx27_clocks_init(unsigned long fref)
{
BUG_ON(!ccm);
@ -163,6 +174,8 @@ static void __init _mx27_clocks_init(unsigned long fref)
clk_prepare_enable(clk[IMX27_CLK_EMI_AHB_GATE]);
imx_register_uart_clocks(uart_clks);
imx_print_silicon_rev("i.MX27", mx27_revision());
}

35
drivers/clk/imx/clk-imx31.c
View File

@ -62,7 +62,17 @@ enum mx31_clks {
static struct clk *clk[clk_max];
static struct clk_onecell_data clk_data;
int __init mx31_clocks_init(unsigned long fref)
static struct clk ** const uart_clks[] __initconst = {
&clk[ipg],
&clk[uart1_gate],
&clk[uart2_gate],
&clk[uart3_gate],
&clk[uart4_gate],
&clk[uart5_gate],
NULL
};
static void __init _mx31_clocks_init(unsigned long fref)
{
void __iomem *base;
struct device_node *np;
@ -132,6 +142,12 @@ int __init mx31_clocks_init(unsigned long fref)
imx_check_clocks(clk, ARRAY_SIZE(clk));
clk_set_parent(clk[csi], clk[upll]);
clk_prepare_enable(clk[emi_gate]);
clk_prepare_enable(clk[iim_gate]);
mx31_revision();
clk_disable_unprepare(clk[iim_gate]);
np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm");
if (np) {
@ -139,6 +155,13 @@ int __init mx31_clocks_init(unsigned long fref)
clk_data.clk_num = ARRAY_SIZE(clk);
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
}
}
int __init mx31_clocks_init(void)
{
u32 fref = 26000000; /* default */
_mx31_clocks_init(fref);
clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
@ -194,12 +217,8 @@ int __init mx31_clocks_init(unsigned long fref)
clk_register_clkdev(clk[sdma_gate], NULL, "imx31-sdma");
clk_register_clkdev(clk[iim_gate], "iim", NULL);
clk_set_parent(clk[csi], clk[upll]);
clk_prepare_enable(clk[emi_gate]);
clk_prepare_enable(clk[iim_gate]);
mx31_revision();
clk_disable_unprepare(clk[iim_gate]);
imx_register_uart_clocks(uart_clks);
mxc_timer_init(MX31_GPT1_BASE_ADDR, MX31_INT_GPT, GPT_TYPE_IMX31);
return 0;
@ -218,5 +237,7 @@ int __init mx31_clocks_init_dt(void)
break;
}
return mx31_clocks_init(fref);
_mx31_clocks_init(fref);
return 0;
}

59
drivers/clk/imx/clk-imx35.c
View File

@ -84,7 +84,15 @@ enum mx35_clks {
static struct clk *clk[clk_max];
int __init mx35_clocks_init(void)
static struct clk ** const uart_clks[] __initconst = {
&clk[ipg],
&clk[uart1_gate],
&clk[uart2_gate],
&clk[uart3_gate],
NULL
};
static void __init _mx35_clocks_init(void)
{
void __iomem *base;
u32 pdr0, consumer_sel, hsp_sel;
@ -220,6 +228,32 @@ int __init mx35_clocks_init(void)
imx_check_clocks(clk, ARRAY_SIZE(clk));
clk_prepare_enable(clk[spba_gate]);
clk_prepare_enable(clk[gpio1_gate]);
clk_prepare_enable(clk[gpio2_gate]);
clk_prepare_enable(clk[gpio3_gate]);
clk_prepare_enable(clk[iim_gate]);
clk_prepare_enable(clk[emi_gate]);
clk_prepare_enable(clk[max_gate]);
clk_prepare_enable(clk[iomuxc_gate]);
/*
* SCC is needed to boot via mmc after a watchdog reset. The clock code
* before conversion to common clk also enabled UART1 (which isn't
* handled here and not needed for mmc) and IIM (which is enabled
* unconditionally above).
*/
clk_prepare_enable(clk[scc_gate]);
imx_register_uart_clocks(uart_clks);
imx_print_silicon_rev("i.MX35", mx35_revision());
}
int __init mx35_clocks_init(void)
{
_mx35_clocks_init();
clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
@ -279,25 +313,6 @@ int __init mx35_clocks_init(void)
clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0");
clk_register_clkdev(clk[admux_gate], "audmux", NULL);
clk_prepare_enable(clk[spba_gate]);
clk_prepare_enable(clk[gpio1_gate]);
clk_prepare_enable(clk[gpio2_gate]);
clk_prepare_enable(clk[gpio3_gate]);
clk_prepare_enable(clk[iim_gate]);
clk_prepare_enable(clk[emi_gate]);
clk_prepare_enable(clk[max_gate]);
clk_prepare_enable(clk[iomuxc_gate]);
/*
* SCC is needed to boot via mmc after a watchdog reset. The clock code
* before conversion to common clk also enabled UART1 (which isn't
* handled here and not needed for mmc) and IIM (which is enabled
* unconditionally above).
*/
clk_prepare_enable(clk[scc_gate]);
imx_print_silicon_rev("i.MX35", mx35_revision());
mxc_timer_init(MX35_GPT1_BASE_ADDR, MX35_INT_GPT, GPT_TYPE_IMX31);
return 0;
@ -305,10 +320,10 @@ int __init mx35_clocks_init(void)
static void __init mx35_clocks_init_dt(struct device_node *ccm_node)
{
_mx35_clocks_init();
clk_data.clks = clk;
clk_data.clk_num = ARRAY_SIZE(clk);
of_clk_add_provider(ccm_node, of_clk_src_onecell_get, &clk_data);
mx35_clocks_init();
}
CLK_OF_DECLARE(imx35, "fsl,imx35-ccm", mx35_clocks_init_dt);

16
drivers/clk/imx/clk-imx51-imx53.c
View File

@ -130,6 +130,20 @@ static const char *cpu_podf_sels[] = { "pll1_sw", "step_sel" };
static struct clk *clk[IMX5_CLK_END];
static struct clk_onecell_data clk_data;
static struct clk ** const uart_clks[] __initconst = {
&clk[IMX5_CLK_UART1_IPG_GATE],
&clk[IMX5_CLK_UART1_PER_GATE],
&clk[IMX5_CLK_UART2_IPG_GATE],
&clk[IMX5_CLK_UART2_PER_GATE],
&clk[IMX5_CLK_UART3_IPG_GATE],
&clk[IMX5_CLK_UART3_PER_GATE],
&clk[IMX5_CLK_UART4_IPG_GATE],
&clk[IMX5_CLK_UART4_PER_GATE],
&clk[IMX5_CLK_UART5_IPG_GATE],
&clk[IMX5_CLK_UART5_PER_GATE],
NULL
};
static void __init mx5_clocks_common_init(void __iomem *ccm_base)
{
clk[IMX5_CLK_DUMMY] = imx_clk_fixed("dummy", 0);
@ -310,6 +324,8 @@ static void __init mx5_clocks_common_init(void __iomem *ccm_base)
clk_prepare_enable(clk[IMX5_CLK_TMAX1]);
clk_prepare_enable(clk[IMX5_CLK_TMAX2]); /* esdhc2, fec */
clk_prepare_enable(clk[IMX5_CLK_TMAX3]); /* esdhc1, esdhc4 */
imx_register_uart_clocks(uart_clks);
}
static void __init mx50_clocks_init(struct device_node *np)

12
drivers/clk/imx/clk-imx6q.c
View File

@ -119,6 +119,7 @@ static unsigned int share_count_ssi1;
static unsigned int share_count_ssi2;
static unsigned int share_count_ssi3;
static unsigned int share_count_mipi_core_cfg;
static unsigned int share_count_spdif;
static inline int clk_on_imx6q(void)
{
@ -130,6 +131,12 @@ static inline int clk_on_imx6dl(void)
return of_machine_is_compatible("fsl,imx6dl");
}
static struct clk ** const uart_clks[] __initconst = {
&clk[IMX6QDL_CLK_UART_IPG],
&clk[IMX6QDL_CLK_UART_SERIAL],
NULL
};
static void __init imx6q_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@ -456,7 +463,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_SATA] = imx_clk_gate2("sata", "ahb", base + 0x7c, 4);
clk[IMX6QDL_CLK_SDMA] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6);
clk[IMX6QDL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
clk[IMX6QDL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif_podf", base + 0x7c, 14);
clk[IMX6QDL_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif_podf", base + 0x7c, 14, &share_count_spdif);
clk[IMX6QDL_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_spdif);
clk[IMX6QDL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
clk[IMX6QDL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
clk[IMX6QDL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
@ -541,5 +549,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
/* All existing boards with PCIe use LVDS1 */
if (IS_ENABLED(CONFIG_PCI_IMX6))
clk_set_parent(clk[IMX6QDL_CLK_LVDS1_SEL], clk[IMX6QDL_CLK_SATA_REF_100M]);
imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);

12
drivers/clk/imx/clk-imx6sl.c
View File

@ -97,6 +97,7 @@ static struct clk_div_table video_div_table[] = {
static unsigned int share_count_ssi1;
static unsigned int share_count_ssi2;
static unsigned int share_count_ssi3;
static unsigned int share_count_spdif;
static struct clk *clks[IMX6SL_CLK_END];
static struct clk_onecell_data clk_data;
@ -184,6 +185,12 @@ void imx6sl_set_wait_clk(bool enter)
imx6sl_enable_pll_arm(false);
}
static struct clk ** const uart_clks[] __initconst = {
&clks[IMX6SL_CLK_UART],
&clks[IMX6SL_CLK_UART_SERIAL],
NULL
};
static void __init imx6sl_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@ -391,7 +398,8 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
clks[IMX6SL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22);
clks[IMX6SL_CLK_SDMA] = imx_clk_gate2("sdma", "ipg", base + 0x7c, 6);
clks[IMX6SL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif0_podf", base + 0x7c, 14);
clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif0_podf", base + 0x7c, 14, &share_count_spdif);
clks[IMX6SL_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_spdif);
clks[IMX6SL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
clks[IMX6SL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
clks[IMX6SL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
@ -439,5 +447,7 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
clk_set_parent(clks[IMX6SL_CLK_LCDIF_AXI_SEL],
clks[IMX6SL_CLK_PLL2_PFD2]);
imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init);

9
drivers/clk/imx/clk-imx6sx.c
View File

@ -135,6 +135,12 @@ static u32 share_count_ssi1;
static u32 share_count_ssi2;
static u32 share_count_ssi3;
static struct clk ** const uart_clks[] __initconst = {
&clks[IMX6SX_CLK_UART_IPG],
&clks[IMX6SX_CLK_UART_SERIAL],
NULL
};
static void __init imx6sx_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@ -454,6 +460,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
clks[IMX6SX_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
clks[IMX6SX_CLK_AUDIO] = imx_clk_gate2_shared("audio", "audio_podf", base + 0x7c, 14, &share_count_audio);
clks[IMX6SX_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif_podf", base + 0x7c, 14, &share_count_audio);
clks[IMX6SX_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_audio);
clks[IMX6SX_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
clks[IMX6SX_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
clks[IMX6SX_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
@ -557,5 +564,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]);
clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]);
imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx6sx, "fsl,imx6sx-ccm", imx6sx_clocks_init);

18
drivers/clk/imx/clk-imx6ul.c
View File

@ -407,6 +407,24 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clk_data.clk_num = ARRAY_SIZE(clks);
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
/*
* Lower the AHB clock rate before changing the parent clock source,
* as AHB clock rate can NOT be higher than 133MHz, but its parent
* will be switched from 396MHz PFD to 528MHz PLL in order to increase
* AXI clock rate, so we need to lower AHB rate first to make sure at
* any time, AHB rate is <= 133MHz.
*/
clk_set_rate(clks[IMX6UL_CLK_AHB], 99000000);
/* Change periph_pre clock to pll2_bus to adjust AXI rate to 264MHz */
clk_set_parent(clks[IMX6UL_CLK_PERIPH_CLK2_SEL], clks[IMX6UL_CLK_PLL3_USB_OTG]);
clk_set_parent(clks[IMX6UL_CLK_PERIPH], clks[IMX6UL_CLK_PERIPH_CLK2]);
clk_set_parent(clks[IMX6UL_CLK_PERIPH_PRE], clks[IMX6UL_CLK_PLL2_BUS]);
clk_set_parent(clks[IMX6UL_CLK_PERIPH], clks[IMX6UL_CLK_PERIPH_PRE]);
/* Make sure AHB rate is 132MHz */
clk_set_rate(clks[IMX6UL_CLK_AHB], 132000000);
/* set perclk to from OSC */
clk_set_parent(clks[IMX6UL_CLK_PERCLK_SEL], clks[IMX6UL_CLK_OSC]);

14
drivers/clk/imx/clk-imx7d.c
View File

@ -363,6 +363,17 @@ static const char *pll_video_bypass_sel[] = { "pll_video_main", "pll_video_main_
static struct clk_onecell_data clk_data;
static struct clk ** const uart_clks[] __initconst = {
&clks[IMX7D_UART1_ROOT_CLK],
&clks[IMX7D_UART2_ROOT_CLK],
&clks[IMX7D_UART3_ROOT_CLK],
&clks[IMX7D_UART4_ROOT_CLK],
&clks[IMX7D_UART5_ROOT_CLK],
&clks[IMX7D_UART6_ROOT_CLK],
&clks[IMX7D_UART7_ROOT_CLK],
NULL
};
static void __init imx7d_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@ -818,6 +829,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
clks[IMX7D_CSI_MCLK_ROOT_CLK] = imx_clk_gate2("csi_mclk_root_clk", "csi_mclk_post_div", base + 0x4490, 0);
clks[IMX7D_AUDIO_MCLK_ROOT_CLK] = imx_clk_gate2("audio_mclk_root_clk", "audio_mclk_post_div", base + 0x4790, 0);
clks[IMX7D_WRCLK_ROOT_CLK] = imx_clk_gate2("wrclk_root_clk", "wrclk_post_div", base + 0x47a0, 0);
clks[IMX7D_ADC_ROOT_CLK] = imx_clk_gate2("adc_root_clk", "ipg_root_clk", base + 0x4200, 0);
clks[IMX7D_GPT_3M_CLK] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8);
@ -856,5 +868,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
/* set uart module clock's parent clock source that must be great then 80MHz */
clk_set_parent(clks[IMX7D_UART1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);
imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx7d, "fsl,imx7d-ccm", imx7d_clocks_init);

1
drivers/clk/imx/clk-vf610.c
View File

@ -387,6 +387,7 @@ static void __init vf610_clocks_init(struct device_node *ccm_node)
clk[VF610_CLK_SNVS] = imx_clk_gate2("snvs-rtc", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(7));
clk[VF610_CLK_DAP] = imx_clk_gate("dap", "platform_bus", CCM_CCSR, 24);
clk[VF610_CLK_OCOTP] = imx_clk_gate("ocotp", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(5));
imx_check_clocks(clk, ARRAY_SIZE(clk));

38
drivers/clk/imx/clk.c
View File

@ -73,3 +73,41 @@ void imx_cscmr1_fixup(u32 *val)
*val ^= CSCMR1_FIXUP;
return;
}
static int imx_keep_uart_clocks __initdata;
static struct clk ** const *imx_uart_clocks __initdata;
static int __init imx_keep_uart_clocks_param(char *str)
{
imx_keep_uart_clocks = 1;
return 0;
}
__setup_param("earlycon", imx_keep_uart_earlycon,
imx_keep_uart_clocks_param, 0);
__setup_param("earlyprintk", imx_keep_uart_earlyprintk,
imx_keep_uart_clocks_param, 0);
void __init imx_register_uart_clocks(struct clk ** const clks[])
{
if (imx_keep_uart_clocks) {
int i;
imx_uart_clocks = clks;
for (i = 0; imx_uart_clocks[i]; i++)
clk_prepare_enable(*imx_uart_clocks[i]);
}
}
static int __init imx_clk_disable_uart(void)
{
if (imx_keep_uart_clocks && imx_uart_clocks) {
int i;
for (i = 0; imx_uart_clocks[i]; i++)
clk_disable_unprepare(*imx_uart_clocks[i]);
}
return 0;
}
late_initcall_sync(imx_clk_disable_uart);

1
drivers/clk/imx/clk.h
View File

@ -7,6 +7,7 @@
extern spinlock_t imx_ccm_lock;
void imx_check_clocks(struct clk *clks[], unsigned int count);
void imx_register_uart_clocks(struct clk ** const clks[]);
extern void imx_cscmr1_fixup(u32 *val);

3
include/dt-bindings/clock/imx6qdl-clock.h
View File

@ -254,6 +254,7 @@
#define IMX6QDL_CLK_CAAM_MEM 241
#define IMX6QDL_CLK_CAAM_ACLK 242
#define IMX6QDL_CLK_CAAM_IPG 243
#define IMX6QDL_CLK_END 244
#define IMX6QDL_CLK_SPDIF_GCLK 244
#define IMX6QDL_CLK_END 245
#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */

3
include/dt-bindings/clock/imx6sl-clock.h
View File

@ -174,6 +174,7 @@
#define IMX6SL_CLK_SSI1_IPG 161
#define IMX6SL_CLK_SSI2_IPG 162
#define IMX6SL_CLK_SSI3_IPG 163
#define IMX6SL_CLK_END 164
#define IMX6SL_CLK_SPDIF_GCLK 164
#define IMX6SL_CLK_END 165
#endif /* __DT_BINDINGS_CLOCK_IMX6SL_H */

3
include/dt-bindings/clock/imx6sx-clock.h
View File

@ -274,6 +274,7 @@
#define IMX6SX_PLL5_BYPASS 261
#define IMX6SX_PLL6_BYPASS 262
#define IMX6SX_PLL7_BYPASS 263
#define IMX6SX_CLK_CLK_END 264
#define IMX6SX_CLK_SPDIF_GCLK 264
#define IMX6SX_CLK_CLK_END 265
#endif /* __DT_BINDINGS_CLOCK_IMX6SX_H */

3
include/dt-bindings/clock/imx7d-clock.h
View File

@ -446,5 +446,6 @@
#define IMX7D_MU_ROOT_CLK 433
#define IMX7D_SEMA4_HS_ROOT_CLK 434
#define IMX7D_PLL_DRAM_TEST_DIV 435
#define IMX7D_CLK_END 436
#define IMX7D_ADC_ROOT_CLK 436
#define IMX7D_CLK_END 437
#endif /* __DT_BINDINGS_CLOCK_IMX7D_H */

3
include/dt-bindings/clock/vf610-clock.h
View File

@ -194,6 +194,7 @@
#define VF610_PLL7_BYPASS 181
#define VF610_CLK_SNVS 182
#define VF610_CLK_DAP 183
#define VF610_CLK_END 184
#define VF610_CLK_OCOTP 184
#define VF610_CLK_END 185
#endif /* __DT_BINDINGS_CLOCK_VF610_H */