From: Christian Eggers <ceggers@arri.de>
To: Abel Vesa <abel.vesa@nxp.com>
Cc: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>, <linux-clk@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Stefan Riedmueller <s.riedmueller@phytec.de>,
Christian Eggers <ceggers@arri.de>
Subject: [PATCH 6/6] clk: imx6sx: enforce gating of gpmi_io clock
Date: Tue, 25 Jan 2022 09:54:40 +0100 [thread overview]
Message-ID: <20220125085440.8768-2-ceggers@arri.de> (raw)
In-Reply-To: <20220125085440.8768-1-ceggers@arri.de>
Clock parent and divider changes are both glitchy for qspi2_clock_root.
Enforce that the child clock is gated.
Signed-off-by: Christian Eggers <ceggers@arri.de>
---
drivers/clk/imx/clk-imx6sx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c
index cf1c1fad45f9..023a18594ebe 100644
--- a/drivers/clk/imx/clk-imx6sx.c
+++ b/drivers/clk/imx/clk-imx6sx.c
@@ -286,7 +286,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
hws[IMX6SX_CLK_ESAI_SEL] = imx_clk_hw_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels));
hws[IMX6SX_CLK_CAN_SEL] = imx_clk_hw_mux("can_sel", base + 0x20, 8, 2, can_sels, ARRAY_SIZE(can_sels));
hws[IMX6SX_CLK_UART_SEL] = imx_clk_hw_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels));
- hws[IMX6SX_CLK_QSPI2_SEL] = imx_clk_hw_mux_flags("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels), CLK_SET_RATE_PARENT);
+ hws[IMX6SX_CLK_QSPI2_SEL] = imx_clk_hw_mux_flags("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
hws[IMX6SX_CLK_SPDIF_SEL] = imx_clk_hw_mux("spdif_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels));
hws[IMX6SX_CLK_AUDIO_SEL] = imx_clk_hw_mux("audio_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels));
hws[IMX6SX_CLK_ENET_PRE_SEL] = imx_clk_hw_mux("enet_pre_sel", base + 0x34, 15, 3, enet_pre_sels, ARRAY_SIZE(enet_pre_sels));
@@ -441,7 +441,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
hws[IMX6SX_CLK_PWM4] = imx_clk_hw_gate2("pwm4", "perclk", base + 0x78, 22);
hws[IMX6SX_CLK_GPMI_BCH_APB] = imx_clk_hw_gate2("gpmi_bch_apb", "usdhc3", base + 0x78, 24);
hws[IMX6SX_CLK_GPMI_BCH] = imx_clk_hw_gate2("gpmi_bch", "usdhc4", base + 0x78, 26);
- hws[IMX6SX_CLK_GPMI_IO] = imx_clk_hw_gate2("gpmi_io", "qspi2_podf", base + 0x78, 28);
+ hws[IMX6SX_CLK_GPMI_IO] = imx_clk_hw_gate2_flags("gpmi_io", "qspi2_podf", base + 0x78, 28, CLK_SET_RATE_GATE);
hws[IMX6SX_CLK_GPMI_APB] = imx_clk_hw_gate2("gpmi_apb", "usdhc3", base + 0x78, 30);
/* CCGR5 */
--
Christian Eggers
Embedded software developer
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRA 57918
Persoenlich haftender Gesellschafter: Arnold & Richter Cine Technik GmbH
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRB 54477
Geschaeftsfuehrer: Dr. Michael Neuhaeuser; Stephan Schenk; Walter Trauninger; Markus Zeiler
prev parent reply other threads:[~2022-01-25 8:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-25 8:52 [PATCH 0/6] clk: imx6*: avoid GPMI clock glitches on reparenting/divider change Christian Eggers
2022-01-25 8:52 ` [PATCH 1/6] clk: imx6ul: disable gpmi_io clock before changing parent clock Christian Eggers
2022-01-25 13:11 ` Fabio Estevam
2022-01-25 8:52 ` [PATCH 2/6] clk: imx6ul: enforce gating of gpmi_io clock Christian Eggers
2022-01-25 8:52 ` [PATCH 3/6] clk: imx6q: disable gpmi_io and ipt_io clocks before changing parent Christian Eggers
2022-01-25 8:52 ` [PATCH 4/6] clk: imx6q: enforce gating of gpmi_io clock Christian Eggers
2022-01-25 8:54 ` [PATCH 5/6] clk: imx6sx: disable gpmi_io clock before changing parent clock Christian Eggers
2022-01-25 8:54 ` Christian Eggers [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220125085440.8768-2-ceggers@arri.de \
--to=ceggers@arri.de \
--cc=abel.vesa@nxp.com \
--cc=festevam@gmail.com \
--cc=kernel@pengutronix.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mturquette@baylibre.com \
--cc=s.hauer@pengutronix.de \
--cc=s.riedmueller@phytec.de \
--cc=sboyd@kernel.org \
--cc=shawnguo@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®