From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
To: Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>,
Christophe Leroy <christophe.leroy@c-s.fr>
Cc: linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Scott Wood <oss@buserror.net>,
Timur Tabi <timur@kernel.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: [PATCH v5 06/48] soc: fsl: qe: replace spin_event_timeout by readx_poll_timeout_atomic
Date: Mon, 18 Nov 2019 12:22:42 +0100 [thread overview]
Message-ID: <20191118112324.22725-7-linux@rasmusvillemoes.dk> (raw)
In-Reply-To: <20191118112324.22725-1-linux@rasmusvillemoes.dk>
In preparation for allowing QE to be built for architectures other
than ppc, use the generic readx_poll_timeout_atomic() helper from
iopoll.h rather than the ppc-only spin_event_timeout().
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
drivers/soc/fsl/qe/qe.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c
index 456bd7416876..85737e6f5b62 100644
--- a/drivers/soc/fsl/qe/qe.c
+++ b/drivers/soc/fsl/qe/qe.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/ioport.h>
+#include <linux/iopoll.h>
#include <linux/crc32.h>
#include <linux/mod_devicetable.h>
#include <linux/of_platform.h>
@@ -108,7 +109,8 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
{
unsigned long flags;
u8 mcn_shift = 0, dev_shift = 0;
- u32 ret;
+ u32 val;
+ int ret;
spin_lock_irqsave(&qe_lock, flags);
if (cmd == QE_RESET) {
@@ -135,13 +137,12 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
}
/* wait for the QE_CR_FLG to clear */
- ret = spin_event_timeout((qe_ioread32be(&qe_immr->cp.cecr) & QE_CR_FLG) == 0,
- 100, 0);
- /* On timeout (e.g. failure), the expression will be false (ret == 0),
- otherwise it will be true (ret == 1). */
+ ret = readx_poll_timeout_atomic(qe_ioread32be, &qe_immr->cp.cecr, val,
+ (val & QE_CR_FLG) == 0, 0, 100);
+ /* On timeout, ret is -ETIMEDOUT, otherwise it will be 0. */
spin_unlock_irqrestore(&qe_lock, flags);
- return ret == 1;
+ return ret == 0;
}
EXPORT_SYMBOL(qe_issue_cmd);
--
2.23.0
next prev parent reply other threads:[~2019-11-18 11:23 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-18 11:22 [PATCH v5 00/48] QUICC Engine support on ARM, ARM64, PPC64 Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 01/48] soc: fsl: qe: remove space-before-tab Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 02/48] soc: fsl: qe: drop volatile qualifier of struct qe_ic::regs Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 03/48] soc: fsl: qe: rename qe_(clr/set/clrset)bit* helpers Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 04/48] soc: fsl: qe: introduce qe_io{read,write}* wrappers Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 05/48] soc: fsl: qe: avoid ppc-specific io accessors Rasmus Villemoes
2019-11-18 11:22 ` Rasmus Villemoes [this message]
2019-11-18 11:22 ` [PATCH v5 07/48] soc: fsl: qe: qe.c: guard use of pvr_version_is() with CONFIG_PPC32 Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 08/48] soc: fsl: qe: drop unneeded #includes Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 09/48] soc: fsl: qe: drop assign-only high_active in qe_ic_init Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 10/48] soc: fsl: qe: remove pointless sysfs registration in qe_ic.c Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 11/48] soc: fsl: qe: use qe_ic_cascade_{low,high}_mpic also on 83xx Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 12/48] soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/ Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 13/48] powerpc/83xx: remove mpc83xx_ipic_and_qe_init_IRQ Rasmus Villemoes
2019-11-20 17:59 ` Li Yang
2019-11-22 7:23 ` Scott Wood
2019-11-18 11:22 ` [PATCH v5 14/48] powerpc/85xx: remove mostly pointless mpc85xx_qe_init() Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 15/48] soc: fsl: qe: move qe_ic_cascade_* functions to qe_ic.c Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 16/48] soc: fsl: qe: rename qe_ic_cascade_low_mpic -> qe_ic_cascade_low Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 17/48] soc: fsl: qe: remove unused qe_ic_set_* functions Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 18/48] soc: fsl: qe: don't use NO_IRQ in qe_ic.c Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 19/48] soc: fsl: qe: make qe_ic_get_{low,high}_irq static Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 20/48] soc: fsl: qe: simplify qe_ic_init() Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 21/48] soc: fsl: qe: merge qe_ic.h headers into qe_ic.c Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 22/48] soc: fsl: qe: qe.c: use of_property_read_* helpers Rasmus Villemoes
2019-11-18 11:22 ` [PATCH v5 23/48] soc: fsl: qe: qe_io.c: don't open-code of_parse_phandle() Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 24/48] soc: fsl: qe: qe_io.c: access device tree property using be32_to_cpu Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 25/48] soc: fsl: qe: qe_io.c: use of_property_read_u32() in par_io_init() Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 26/48] soc: fsl: move cpm.h from powerpc/include/asm to include/soc/fsl Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 27/48] soc/fsl/qe/qe.h: update include path for cpm.h Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 28/48] serial: ucc_uart: explicitly include soc/fsl/cpm.h Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 29/48] serial: ucc_uart: replace ppc-specific IO accessors Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 30/48] serial: ucc_uart: factor out soft_uart initialization Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 31/48] serial: ucc_uart: stub out soft_uart_init for !CONFIG_PPC32 Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 32/48] serial: ucc_uart: use of_property_read_u32() in ucc_uart_probe() Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 33/48] serial: ucc_uart: limit brg-frequency workaround to PPC32 Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 34/48] serial: ucc_uart: access __be32 field using be32_to_cpu Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 35/48] soc: fsl: qe: change return type of cpm_muram_alloc() to s32 Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 36/48] soc: fsl: qe: make cpm_muram_free() return void Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 37/48] soc: fsl: qe: make cpm_muram_free() ignore a negative offset Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 38/48] soc: fsl: qe: drop broken lazy call of cpm_muram_init() Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 39/48] soc: fsl: qe: refactor cpm_muram_alloc_common to prevent BUG on error path Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 40/48] soc: fsl: qe: avoid IS_ERR_VALUE in ucc_slow.c Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 41/48] soc: fsl: qe: drop use of IS_ERR_VALUE in qe_sdma_init() Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 42/48] soc: fsl: qe: drop pointless check " Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 43/48] soc: fsl: qe: avoid IS_ERR_VALUE in ucc_fast.c Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 44/48] net/wan/fsl_ucc_hdlc: avoid use of IS_ERR_VALUE() Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 45/48] net/wan/fsl_ucc_hdlc: fix reading of __be16 registers Rasmus Villemoes
2019-11-20 17:52 ` Li Yang
2019-11-18 11:23 ` [PATCH v5 46/48] net/wan/fsl_ucc_hdlc: reject muram offsets above 64K Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 47/48] net: ethernet: freescale: make UCC_GETH explicitly depend on PPC32 Rasmus Villemoes
2019-11-18 11:23 ` [PATCH v5 48/48] soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE Rasmus Villemoes
2019-11-20 3:55 ` [PATCH v5 00/48] QUICC Engine support on ARM, ARM64, PPC64 Timur Tabi
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