Thread (18 messages) 18 messages, 4 authors, 2020-08-10

Re: [PATCH 1/8] mfd: mt6358: refine interrupt code

From: Lee Jones <hidden>
Date: 2020-08-10 07:31:34
Also in: linux-devicetree, linux-mediatek, lkml

On Mon, 03 Aug 2020, Hsin-hsiung Wang wrote:
Hi,

On Mon, 2020-07-27 at 16:48 +0100, Lee Jones wrote:
quoted
On Thu, 23 Jul 2020, Hsin-Hsiung Wang wrote:
quoted
This patch refines the interrupt related code to support new chips.
Refines in what way?

What makes this better?
Thanks for the comment. I will add more information into comment message
based on my below explanation.
Thanks.
quoted
quoted
Signed-off-by: Hsin-Hsiung Wang <redacted>
---
 drivers/mfd/mt6358-irq.c        | 65 ++++++++++++++++++++++++-----------------
 include/linux/mfd/mt6358/core.h |  8 ++---
 2 files changed, 41 insertions(+), 32 deletions(-)
diff --git a/drivers/mfd/mt6358-irq.c b/drivers/mfd/mt6358-irq.c
index db734f2..4b094e5 100644
--- a/drivers/mfd/mt6358-irq.c
+++ b/drivers/mfd/mt6358-irq.c
@@ -13,7 +13,9 @@
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 
-static struct irq_top_t mt6358_ints[] = {
+#define MTK_PMIC_REG_WIDTH 16
+
+static const struct irq_top_t mt6358_ints[] = {
 	MT6358_TOP_GEN(BUCK),
 	MT6358_TOP_GEN(LDO),
 	MT6358_TOP_GEN(PSC),
@@ -24,6 +26,13 @@ static struct irq_top_t mt6358_ints[] = {
 	MT6358_TOP_GEN(MISC),
 };
 
+static struct pmic_irq_data mt6358_irqd = {
+	.num_top = ARRAY_SIZE(mt6358_ints),
+	.num_pmic_irqs = MT6358_IRQ_NR,
+	.top_int_status_reg = MT6358_TOP_INT_STATUS0,
+	.pmic_ints = mt6358_ints,
+};
Dynamically assigned driver data is usually preferred.

Why have you gone static?
Do you consider the memory allocation?
Below modification is to assign necessary data dynamically and the code
will become longer with more chips if we assign every member of the
structure.
[...]

Never mind.  On second glance, this should be fine.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

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