linux-kernel - [PATCH v3 4/4] clk: rockchip: rk3368: make some special clk as critical

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Date:   Tue,  2 May 2017 15:34:06 +0800
From:   Elaine Zhang <zhangqing@...k-chips.com>
To:     heiko@...ech.de, xf@...k-chips.com
Cc:     mturquette@...libre.com, sboyd@...eaurora.org,
        linux-clk@...r.kernel.org, huangtao@...k-chips.com,
        xxx@...k-chips.com, linux-rockchip@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Elaine Zhang <zhangqing@...k-chips.com>
Subject: [PATCH v3 4/4] clk: rockchip: rk3368: make some special clk as critical_clocks

The jtag clk no driver to handle them.
But this clk need enable,so make it as critical.

The ddrphy\ddrupctl clks no driver to handle them,
Chip design requirements for these clock to always on,
The new document will update the description of these clock.

The pmu_hclk_otg0 is Chip design defect, must be always on,
The new document will update the description of this clock.

Signed-off-by: Elaine Zhang <zhangqing@...k-chips.com>
---
 drivers/clk/rockchip/clk-rk3368.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-rk3368.c
index 6cb474c593e7..b38343f9177c 100644
--- a/drivers/clk/rockchip/clk-rk3368.c
+++ b/drivers/clk/rockchip/clk-rk3368.c
@@ -638,7 +638,7 @@ enum rk3368_plls {
 	GATE(SCLK_MAC_TX, "sclk_mac_tx", "mac_clk", 0,
 			RK3368_CLKGATE_CON(7), 5, GFLAGS),
 
-	GATE(0, "jtag", "ext_jtag", 0,
+	GATE(0, "jtag", "ext_jtag", CLK_IGNORE_UNUSED,
 			RK3368_CLKGATE_CON(7), 0, GFLAGS),
 
 	COMPOSITE_NODIV(0, "hsic_usbphy_480m", mux_hsic_usbphy480m_p, 0,
@@ -858,6 +858,9 @@ enum rk3368_plls {
 	 */
 	"pclk_pwm1",
 	"pclk_pd_pmu",
+	"pclk_ddrphy",
+	"pclk_ddrupctl",
+	"pmu_hclk_otg0",
 };
 
 static void __init rk3368_clk_init(struct device_node *np)
-- 
1.9.1