linux.git/drivers/clk/rockchip, branch v5.12 Linux kernel source tree clk: rockchip: fix DPHY gate locations on rk3368 2021-02-06T00:05:04+00:00 Heiko Stuebner heiko.stuebner@theobroma-systems.com 2021-02-05T11:05:02+00:00 4bc23b3c83c9a3fc0a7dd8f2f11f451aa92c85cd Fix the register and bits of the DPHY gate locations. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Link: https://lore.kernel.org/r/20210205110502.1850669-5-heiko@sntech.de 
Fix the register and bits of the DPHY gate locations.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20210205110502.1850669-5-heiko@sntech.de
clk: rockchip: use clock id for SCLK_VIP_OUT on rk3368 2021-02-06T00:05:04+00:00 Heiko Stuebner heiko.stuebner@theobroma-systems.com 2021-02-05T11:05:01+00:00 ed2243e0038b8afdd7726d117da34ee4577e11ad Export the vip-out clock via the newly added clock-id. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Link: https://lore.kernel.org/r/20210205110502.1850669-4-heiko@sntech.de 
Export the vip-out clock via the newly added clock-id.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20210205110502.1850669-4-heiko@sntech.de
clk: rockchip: use clock ids for PCLK_DPHYRX and PCLK_DPHYTX0 on rk3368 2021-02-06T00:05:04+00:00 Heiko Stuebner heiko.stuebner@theobroma-systems.com 2021-02-05T11:04:59+00:00 fabb841c5b16721298cfe649b569a4fa40af28a6 Export the clocks via the newly added clock-ids. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Link: https://lore.kernel.org/r/20210205110502.1850669-2-heiko@sntech.de 
Export the clocks via the newly added clock-ids.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20210205110502.1850669-2-heiko@sntech.de
clk: rockchip: Demote non-conformant kernel-doc header in half-divider 2021-01-25T23:24:05+00:00 Lee Jones lee.jones@linaro.org 2021-01-20T09:30:24+00:00 d48fbef962b095f7cc22017642fb9055d57fdb53 Fixes the following W=1 kernel build warning(s): drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'name' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'parent_names' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'num_parents' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'base' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'muxdiv_offset' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'mux_shift' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'mux_width' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'mux_flags' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'div_shift' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'div_width' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'div_flags' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'gate_offset' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'gate_shift' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'gate_flags' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'flags' not described in 'rockchip_clk_register_halfdiv' drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'lock' not described in 'rockchip_clk_register_halfdiv' Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210120093040.1719407-5-lee.jones@linaro.org Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
Fixes the following W=1 kernel build warning(s):

 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'name' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'parent_names' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'num_parents' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'base' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'muxdiv_offset' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'mux_shift' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'mux_width' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'mux_flags' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'div_shift' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'div_width' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'div_flags' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'gate_offset' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'gate_shift' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'gate_flags' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'flags' not described in 'rockchip_clk_register_halfdiv'
 drivers/clk/rockchip/clk-half-divider.c:168: warning: Function parameter or member 'lock' not described in 'rockchip_clk_register_halfdiv'

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210120093040.1719407-5-lee.jones@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
clk: rockchip: Demote kernel-doc abuses to standard comment blocks in plls 2021-01-25T23:24:05+00:00 Lee Jones lee.jones@linaro.org 2021-01-20T09:30:23+00:00 eee7b95589e61bd7250cada52ddd8039c63535ef Fixes the following W=1 kernel build warning(s): drivers/clk/rockchip/clk-pll.c:104: warning: Function parameter or member 'i' not described in 'RK3036_PLLCON' drivers/clk/rockchip/clk-pll.c:365: warning: Function parameter or member 'nr' not described in 'RK3066_PLL_RESET_DELAY' drivers/clk/rockchip/clk-pll.c:584: warning: Function parameter or member 'i' not described in 'RK3399_PLLCON' Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Xing Zheng <zhengxing@rock-chips.com> Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210120093040.1719407-4-lee.jones@linaro.org Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
Fixes the following W=1 kernel build warning(s):

 drivers/clk/rockchip/clk-pll.c:104: warning: Function parameter or member 'i' not described in 'RK3036_PLLCON'
 drivers/clk/rockchip/clk-pll.c:365: warning: Function parameter or member 'nr' not described in 'RK3066_PLL_RESET_DELAY'
 drivers/clk/rockchip/clk-pll.c:584: warning: Function parameter or member 'i' not described in 'RK3399_PLLCON'

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Xing Zheng <zhengxing@rock-chips.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210120093040.1719407-4-lee.jones@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
clk: rockchip: Remove unused/undocumented struct members from clk-cpu 2021-01-25T23:24:05+00:00 Lee Jones lee.jones@linaro.org 2021-01-20T09:30:22+00:00 274ae6da4b3275fea32f0807e6e20715695dd210 Fixes the following W=1 kernel build warning(s): drivers/clk/rockchip/clk-cpu.c:65: warning: Function parameter or member 'cpu_mux' not described in 'rockchip_cpuclk' drivers/clk/rockchip/clk-cpu.c:65: warning: Function parameter or member 'cpu_mux_ops' not described in 'rockchip_cpuclk' Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210120093040.1719407-3-lee.jones@linaro.org Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
Fixes the following W=1 kernel build warning(s):

 drivers/clk/rockchip/clk-cpu.c:65: warning: Function parameter or member 'cpu_mux' not described in 'rockchip_cpuclk'
 drivers/clk/rockchip/clk-cpu.c:65: warning: Function parameter or member 'cpu_mux_ops' not described in 'rockchip_cpuclk'

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210120093040.1719407-3-lee.jones@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
clk: rockchip: Demote non-conformant kernel-doc headers in main clock code 2021-01-25T23:24:04+00:00 Lee Jones lee.jones@linaro.org 2021-01-20T09:30:21+00:00 415173712003ad7e54de7198979d68a428440ed6 Fixes the following W=1 kernel build warning(s): drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'name' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'parent_names' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'num_parents' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'base' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'muxdiv_offset' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_shift' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_width' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_offset' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_shift' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_width' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_table' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_offset' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_shift' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'lock' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'hw' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'rate' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'parent_rate' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'm' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'n' not described in 'rockchip_fractional_approximation' Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Xing Zheng <zhengxing@rock-chips.com> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210120093040.1719407-2-lee.jones@linaro.org Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
Fixes the following W=1 kernel build warning(s):

 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'name' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'parent_names' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'num_parents' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'base' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'muxdiv_offset' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_shift' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_width' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_flags' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_offset' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_shift' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_width' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_flags' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_table' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_offset' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_shift' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_flags' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'flags' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'lock' not described in 'rockchip_clk_register_branch'
 drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'hw' not described in 'rockchip_fractional_approximation'
 drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'rate' not described in 'rockchip_fractional_approximation'
 drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'parent_rate' not described in 'rockchip_fractional_approximation'
 drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'm' not described in 'rockchip_fractional_approximation'
 drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'n' not described in 'rockchip_fractional_approximation'

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Xing Zheng <zhengxing@rock-chips.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210120093040.1719407-2-lee.jones@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
clk: rockchip: fix i2s gate bits on rk3066 and rk3188 2020-11-29T19:10:45+00:00 Johan Jonker jbx6244@gmail.com 2020-11-18T13:58:17+00:00 caa2fd752ecb80faf7a2e1cdadc737187934675e The Rockchip PX2/RK3066 uses these bits in CRU_CLKGATE7_CON: hclk_i2s_8ch_gate_en bit 4 (dtsi: i2s0) hclk_i2s0_2ch_gate_en bit 2 (dtsi: i2s1) hclk_i2s1_2ch_gate_en bit 3 (dtsi: i2s2) The Rockchip PX3/RK3188 uses this bit in CRU_CLKGATE7_CON: hclk_i2s_2ch_gate_en bit 2 (dtsi: i2s0) The bits got somehow mixed up in the clk-rk3188.c file. The labels in the dtsi files are not suppose to change. The sclk and hclk names should match for "trace_event=clk_disable,clk_enable", so remove GATE HCLK_I2S0 from the common clock tree and fix the bits in the rk3066 and rk3188 clock tree. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20201118135822.9582-3-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
The Rockchip PX2/RK3066 uses these bits in CRU_CLKGATE7_CON:

hclk_i2s_8ch_gate_en  bit 4 (dtsi: i2s0)
hclk_i2s0_2ch_gate_en bit 2 (dtsi: i2s1)
hclk_i2s1_2ch_gate_en bit 3 (dtsi: i2s2)

The Rockchip PX3/RK3188 uses this bit in CRU_CLKGATE7_CON:

hclk_i2s_2ch_gate_en  bit 2 (dtsi: i2s0)

The bits got somehow mixed up in the clk-rk3188.c file.
The labels in the dtsi files are not suppose to change.
The sclk and hclk names should match for
"trace_event=clk_disable,clk_enable",
so remove GATE HCLK_I2S0 from the common clock tree and
fix the bits in the rk3066 and rk3188 clock tree.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20201118135822.9582-3-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
clk: rockchip: add CLK_SET_RATE_PARENT to sclk for rk3066a i2s and uart clocks 2020-11-29T19:10:44+00:00 Johan Jonker jbx6244@gmail.com 2020-11-18T13:58:16+00:00 5868491e1257786628fdd2457dfb77609f49f91d Add CLK_SET_RATE_PARENT to sclk for rk3066a i2s and uart clocks, so that the parent COMPOSITE_FRACMUX and COMPOSITE_NOMUX also update. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20201118135822.9582-2-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
Add CLK_SET_RATE_PARENT to sclk for rk3066a i2s and uart clocks,
so that the parent COMPOSITE_FRACMUX and COMPOSITE_NOMUX
also update.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20201118135822.9582-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
clk: rockchip: Remove redundant null check before clk_prepare_enable 2020-11-29T19:02:58+00:00 Xu Wang vulab@iscas.ac.cn 2020-11-27T09:05:51+00:00 7f5b57a095f3b9532793d143655e83433bb448af Because clk_prepare_enable() already checked NULL clock parameter, so the additional check is unnecessary, just remove it. Signed-off-by: Xu Wang <vulab@iscas.ac.cn> Acked-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20201127090551.50254-1-vulab@iscas.ac.cn Signed-off-by: Heiko Stuebner <heiko@sntech.de> 
Because clk_prepare_enable() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20201127090551.50254-1-vulab@iscas.ac.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>