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Message-ID: <CAHCN7xLpdLY06vUDW0-oAVWDk-VYf_8kZh2F8f5+jd0RS0y74w@mail.gmail.com>
Date: Mon, 18 Oct 2021 07:41:31 -0500
From: Adam Ford <aford173@...il.com>
To: Abel Vesa <abel.vesa@....com>
Cc: Rob Herring <robh@...nel.org>, Dong Aisheng <aisheng.dong@....com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
"catalin.marinas@....com" <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
MyungJoo Ham <myungjoo.ham@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Georgi Djakov <djakov@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
Ahmad Fatoum <a.fatoum@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
linux-serial@...r.kernel.org, NXP Linux Team <linux-imx@....com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
devicetree <devicetree@...r.kernel.org>,
linux-pm@...r.kernel.org,
arm-soc <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC 08/19] interconnect: imx8: Remove the imx_icc_node_adj_desc
On Mon, Sep 13, 2021 at 12:39 PM Abel Vesa <abel.vesa@....com> wrote:
>
> Now that the imx generic interconnect doesn't use the
> imx_icc_node_adj_desc, we remove it from all the i.MX8M
> platform drivers.
>
> Signed-off-by: Abel Vesa <abel.vesa@....com>
> ---
> drivers/interconnect/imx/imx.h | 19 ++++-------------
> drivers/interconnect/imx/imx8mm.c | 32 +++++++++-------------------
> drivers/interconnect/imx/imx8mn.c | 28 +++++++------------------
> drivers/interconnect/imx/imx8mq.c | 35 ++++++++++---------------------
> 4 files changed, 33 insertions(+), 81 deletions(-)
>
I noticed there are no interconnect nodes in the imx8mm nor the
imx8mn, so it appears to me like the mini and nano code won't do
anything.
adam
> diff --git a/drivers/interconnect/imx/imx.h b/drivers/interconnect/imx/imx.h
> index 75da51076c68..5c9f5138f6aa 100644
> --- a/drivers/interconnect/imx/imx.h
> +++ b/drivers/interconnect/imx/imx.h
> @@ -14,15 +14,6 @@
>
> #define IMX_ICC_MAX_LINKS 4
>
> -/*
> - * struct imx_icc_node_adj - Describe a dynamic adjustable node
> - */
> -struct imx_icc_node_adj_desc {
> - unsigned int bw_mul, bw_div;
> - const char *phandle_name;
> - bool main_noc;
> -};
> -
> /*
> * struct imx_icc_node - Describe an interconnect node
> * @name: name of the node
> @@ -35,23 +26,21 @@ struct imx_icc_node_desc {
> u16 id;
> u16 links[IMX_ICC_MAX_LINKS];
> u16 num_links;
> - const struct imx_icc_node_adj_desc *adj;
> };
>
> -#define DEFINE_BUS_INTERCONNECT(_name, _id, _adj, ...) \
> +#define DEFINE_BUS_INTERCONNECT(_name, _id, ...) \
> { \
> .id = _id, \
> .name = _name, \
> - .adj = _adj, \
> .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \
> .links = { __VA_ARGS__ }, \
> }
>
> #define DEFINE_BUS_MASTER(_name, _id, _dest_id) \
> - DEFINE_BUS_INTERCONNECT(_name, _id, NULL, _dest_id)
> + DEFINE_BUS_INTERCONNECT(_name, _id, _dest_id)
>
> -#define DEFINE_BUS_SLAVE(_name, _id, _adj) \
> - DEFINE_BUS_INTERCONNECT(_name, _id, _adj)
> +#define DEFINE_BUS_SLAVE(_name, _id) \
> + DEFINE_BUS_INTERCONNECT(_name, _id)
>
> int imx_icc_register(struct platform_device *pdev,
> struct imx_icc_node_desc *nodes,
> diff --git a/drivers/interconnect/imx/imx8mm.c b/drivers/interconnect/imx/imx8mm.c
> index 1083490bb391..0c16110bef9d 100644
> --- a/drivers/interconnect/imx/imx8mm.c
> +++ b/drivers/interconnect/imx/imx8mm.c
> @@ -14,18 +14,6 @@
>
> #include "imx.h"
>
> -static const struct imx_icc_node_adj_desc imx8mm_dram_adj = {
> - .bw_mul = 1,
> - .bw_div = 16,
> - .phandle_name = "fsl,ddrc",
> -};
> -
> -static const struct imx_icc_node_adj_desc imx8mm_noc_adj = {
> - .bw_mul = 1,
> - .bw_div = 16,
> - .main_noc = true,
> -};
> -
> /*
> * Describe bus masters, slaves and connections between them
> *
> @@ -33,43 +21,43 @@ static const struct imx_icc_node_adj_desc imx8mm_noc_adj = {
> * PL301 nics which are skipped/merged into PL301_MAIN
> */
> static struct imx_icc_node_desc nodes[] = {
> - DEFINE_BUS_INTERCONNECT("NOC", IMX8MM_ICN_NOC, &imx8mm_noc_adj,
> + DEFINE_BUS_INTERCONNECT("NOC", IMX8MM_ICN_NOC,
> IMX8MM_ICS_DRAM, IMX8MM_ICN_MAIN),
>
> - DEFINE_BUS_SLAVE("DRAM", IMX8MM_ICS_DRAM, &imx8mm_dram_adj),
> - DEFINE_BUS_SLAVE("OCRAM", IMX8MM_ICS_OCRAM, NULL),
> + DEFINE_BUS_SLAVE("DRAM", IMX8MM_ICS_DRAM),
> + DEFINE_BUS_SLAVE("OCRAM", IMX8MM_ICS_OCRAM),
> DEFINE_BUS_MASTER("A53", IMX8MM_ICM_A53, IMX8MM_ICN_NOC),
>
> /* VPUMIX */
> DEFINE_BUS_MASTER("VPU H1", IMX8MM_ICM_VPU_H1, IMX8MM_ICN_VIDEO),
> DEFINE_BUS_MASTER("VPU G1", IMX8MM_ICM_VPU_G1, IMX8MM_ICN_VIDEO),
> DEFINE_BUS_MASTER("VPU G2", IMX8MM_ICM_VPU_G2, IMX8MM_ICN_VIDEO),
> - DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MM_ICN_VIDEO, NULL, IMX8MM_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MM_ICN_VIDEO, IMX8MM_ICN_NOC),
>
> /* GPUMIX */
> DEFINE_BUS_MASTER("GPU 2D", IMX8MM_ICM_GPU2D, IMX8MM_ICN_GPU),
> DEFINE_BUS_MASTER("GPU 3D", IMX8MM_ICM_GPU3D, IMX8MM_ICN_GPU),
> - DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MM_ICN_GPU, NULL, IMX8MM_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MM_ICN_GPU, IMX8MM_ICN_NOC),
>
> /* DISPLAYMIX */
> DEFINE_BUS_MASTER("CSI", IMX8MM_ICM_CSI, IMX8MM_ICN_MIPI),
> DEFINE_BUS_MASTER("LCDIF", IMX8MM_ICM_LCDIF, IMX8MM_ICN_MIPI),
> - DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MM_ICN_MIPI, NULL, IMX8MM_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MM_ICN_MIPI, IMX8MM_ICN_NOC),
>
> /* HSIO */
> DEFINE_BUS_MASTER("USB1", IMX8MM_ICM_USB1, IMX8MM_ICN_HSIO),
> DEFINE_BUS_MASTER("USB2", IMX8MM_ICM_USB2, IMX8MM_ICN_HSIO),
> DEFINE_BUS_MASTER("PCIE", IMX8MM_ICM_PCIE, IMX8MM_ICN_HSIO),
> - DEFINE_BUS_INTERCONNECT("PL301_HSIO", IMX8MM_ICN_HSIO, NULL, IMX8MM_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_HSIO", IMX8MM_ICN_HSIO, IMX8MM_ICN_NOC),
>
> /* Audio */
> DEFINE_BUS_MASTER("SDMA2", IMX8MM_ICM_SDMA2, IMX8MM_ICN_AUDIO),
> DEFINE_BUS_MASTER("SDMA3", IMX8MM_ICM_SDMA3, IMX8MM_ICN_AUDIO),
> - DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MM_ICN_AUDIO, NULL, IMX8MM_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MM_ICN_AUDIO, IMX8MM_ICN_MAIN),
>
> /* Ethernet */
> DEFINE_BUS_MASTER("ENET", IMX8MM_ICM_ENET, IMX8MM_ICN_ENET),
> - DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MM_ICN_ENET, NULL, IMX8MM_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MM_ICN_ENET, IMX8MM_ICN_MAIN),
>
> /* Other */
> DEFINE_BUS_MASTER("SDMA1", IMX8MM_ICM_SDMA1, IMX8MM_ICN_MAIN),
> @@ -77,7 +65,7 @@ static struct imx_icc_node_desc nodes[] = {
> DEFINE_BUS_MASTER("USDHC1", IMX8MM_ICM_USDHC1, IMX8MM_ICN_MAIN),
> DEFINE_BUS_MASTER("USDHC2", IMX8MM_ICM_USDHC2, IMX8MM_ICN_MAIN),
> DEFINE_BUS_MASTER("USDHC3", IMX8MM_ICM_USDHC3, IMX8MM_ICN_MAIN),
> - DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MM_ICN_MAIN, NULL,
> + DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MM_ICN_MAIN,
> IMX8MM_ICN_NOC, IMX8MM_ICS_OCRAM),
> };
>
> diff --git a/drivers/interconnect/imx/imx8mn.c b/drivers/interconnect/imx/imx8mn.c
> index ad97e55fd4e5..8d16bd5cf006 100644
> --- a/drivers/interconnect/imx/imx8mn.c
> +++ b/drivers/interconnect/imx/imx8mn.c
> @@ -11,18 +11,6 @@
>
> #include "imx.h"
>
> -static const struct imx_icc_node_adj_desc imx8mn_dram_adj = {
> - .bw_mul = 1,
> - .bw_div = 4,
> - .phandle_name = "fsl,ddrc",
> -};
> -
> -static const struct imx_icc_node_adj_desc imx8mn_noc_adj = {
> - .bw_mul = 1,
> - .bw_div = 4,
> - .main_noc = true,
> -};
> -
> /*
> * Describe bus masters, slaves and connections between them
> *
> @@ -30,23 +18,23 @@ static const struct imx_icc_node_adj_desc imx8mn_noc_adj = {
> * PL301 nics which are skipped/merged into PL301_MAIN
> */
> static struct imx_icc_node_desc nodes[] = {
> - DEFINE_BUS_INTERCONNECT("NOC", IMX8MN_ICN_NOC, &imx8mn_noc_adj,
> + DEFINE_BUS_INTERCONNECT("NOC", IMX8MN_ICN_NOC,
> IMX8MN_ICS_DRAM, IMX8MN_ICN_MAIN),
>
> - DEFINE_BUS_SLAVE("DRAM", IMX8MN_ICS_DRAM, &imx8mn_dram_adj),
> - DEFINE_BUS_SLAVE("OCRAM", IMX8MN_ICS_OCRAM, NULL),
> + DEFINE_BUS_SLAVE("DRAM", IMX8MN_ICS_DRAM),
> + DEFINE_BUS_SLAVE("OCRAM", IMX8MN_ICS_OCRAM),
> DEFINE_BUS_MASTER("A53", IMX8MN_ICM_A53, IMX8MN_ICN_NOC),
>
> /* GPUMIX */
> DEFINE_BUS_MASTER("GPU", IMX8MN_ICM_GPU, IMX8MN_ICN_GPU),
> - DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MN_ICN_GPU, NULL, IMX8MN_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MN_ICN_GPU, IMX8MN_ICN_NOC),
>
> /* DISPLAYMIX */
> DEFINE_BUS_MASTER("CSI1", IMX8MN_ICM_CSI1, IMX8MN_ICN_MIPI),
> DEFINE_BUS_MASTER("CSI2", IMX8MN_ICM_CSI2, IMX8MN_ICN_MIPI),
> DEFINE_BUS_MASTER("ISI", IMX8MN_ICM_ISI, IMX8MN_ICN_MIPI),
> DEFINE_BUS_MASTER("LCDIF", IMX8MN_ICM_LCDIF, IMX8MN_ICN_MIPI),
> - DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MN_ICN_MIPI, NULL, IMX8MN_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MN_ICN_MIPI, IMX8MN_ICN_NOC),
>
> /* USB goes straight to NOC */
> DEFINE_BUS_MASTER("USB", IMX8MN_ICM_USB, IMX8MN_ICN_NOC),
> @@ -54,11 +42,11 @@ static struct imx_icc_node_desc nodes[] = {
> /* Audio */
> DEFINE_BUS_MASTER("SDMA2", IMX8MN_ICM_SDMA2, IMX8MN_ICN_AUDIO),
> DEFINE_BUS_MASTER("SDMA3", IMX8MN_ICM_SDMA3, IMX8MN_ICN_AUDIO),
> - DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MN_ICN_AUDIO, NULL, IMX8MN_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MN_ICN_AUDIO, IMX8MN_ICN_MAIN),
>
> /* Ethernet */
> DEFINE_BUS_MASTER("ENET", IMX8MN_ICM_ENET, IMX8MN_ICN_ENET),
> - DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MN_ICN_ENET, NULL, IMX8MN_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MN_ICN_ENET, IMX8MN_ICN_MAIN),
>
> /* Other */
> DEFINE_BUS_MASTER("SDMA1", IMX8MN_ICM_SDMA1, IMX8MN_ICN_MAIN),
> @@ -66,7 +54,7 @@ static struct imx_icc_node_desc nodes[] = {
> DEFINE_BUS_MASTER("USDHC1", IMX8MN_ICM_USDHC1, IMX8MN_ICN_MAIN),
> DEFINE_BUS_MASTER("USDHC2", IMX8MN_ICM_USDHC2, IMX8MN_ICN_MAIN),
> DEFINE_BUS_MASTER("USDHC3", IMX8MN_ICM_USDHC3, IMX8MN_ICN_MAIN),
> - DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MN_ICN_MAIN, NULL,
> + DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MN_ICN_MAIN
> IMX8MN_ICN_NOC, IMX8MN_ICS_OCRAM),
> };
>
> diff --git a/drivers/interconnect/imx/imx8mq.c b/drivers/interconnect/imx/imx8mq.c
> index d7768d3c6d8a..b8c36d668946 100644
> --- a/drivers/interconnect/imx/imx8mq.c
> +++ b/drivers/interconnect/imx/imx8mq.c
> @@ -12,18 +12,6 @@
>
> #include "imx.h"
>
> -static const struct imx_icc_node_adj_desc imx8mq_dram_adj = {
> - .bw_mul = 1,
> - .bw_div = 4,
> - .phandle_name = "fsl,ddrc",
> -};
> -
> -static const struct imx_icc_node_adj_desc imx8mq_noc_adj = {
> - .bw_mul = 1,
> - .bw_div = 4,
> - .main_noc = true,
> -};
> -
> /*
> * Describe bus masters, slaves and connections between them
> *
> @@ -31,43 +19,42 @@ static const struct imx_icc_node_adj_desc imx8mq_noc_adj = {
> * PL301 nics which are skipped/merged into PL301_MAIN
> */
> static struct imx_icc_node_desc nodes[] = {
> - DEFINE_BUS_INTERCONNECT("NOC", IMX8MQ_ICN_NOC, &imx8mq_noc_adj,
> - IMX8MQ_ICS_DRAM, IMX8MQ_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("NOC", IMX8MQ_ICN_NOC, IMX8MQ_ICS_DRAM, IMX8MQ_ICN_MAIN),
>
> - DEFINE_BUS_SLAVE("DRAM", IMX8MQ_ICS_DRAM, &imx8mq_dram_adj),
> - DEFINE_BUS_SLAVE("OCRAM", IMX8MQ_ICS_OCRAM, NULL),
> + DEFINE_BUS_SLAVE("DRAM", IMX8MQ_ICS_DRAM),
> + DEFINE_BUS_SLAVE("OCRAM", IMX8MQ_ICS_OCRAM),
> DEFINE_BUS_MASTER("A53", IMX8MQ_ICM_A53, IMX8MQ_ICN_NOC),
>
> /* VPUMIX */
> DEFINE_BUS_MASTER("VPU", IMX8MQ_ICM_VPU, IMX8MQ_ICN_VIDEO),
> - DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MQ_ICN_VIDEO, NULL, IMX8MQ_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MQ_ICN_VIDEO, IMX8MQ_ICN_NOC),
>
> /* GPUMIX */
> DEFINE_BUS_MASTER("GPU", IMX8MQ_ICM_GPU, IMX8MQ_ICN_GPU),
> - DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MQ_ICN_GPU, NULL, IMX8MQ_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MQ_ICN_GPU, IMX8MQ_ICN_NOC),
>
> /* DISPMIX (only for DCSS) */
> DEFINE_BUS_MASTER("DC", IMX8MQ_ICM_DCSS, IMX8MQ_ICN_DCSS),
> - DEFINE_BUS_INTERCONNECT("PL301_DC", IMX8MQ_ICN_DCSS, NULL, IMX8MQ_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_DC", IMX8MQ_ICN_DCSS, IMX8MQ_ICN_NOC),
>
> /* USBMIX */
> DEFINE_BUS_MASTER("USB1", IMX8MQ_ICM_USB1, IMX8MQ_ICN_USB),
> DEFINE_BUS_MASTER("USB2", IMX8MQ_ICM_USB2, IMX8MQ_ICN_USB),
> - DEFINE_BUS_INTERCONNECT("PL301_USB", IMX8MQ_ICN_USB, NULL, IMX8MQ_ICN_NOC),
> + DEFINE_BUS_INTERCONNECT("PL301_USB", IMX8MQ_ICN_USB, IMX8MQ_ICN_NOC),
>
> /* PL301_DISPLAY (IPs other than DCSS, inside SUPERMIX) */
> DEFINE_BUS_MASTER("CSI1", IMX8MQ_ICM_CSI1, IMX8MQ_ICN_DISPLAY),
> DEFINE_BUS_MASTER("CSI2", IMX8MQ_ICM_CSI2, IMX8MQ_ICN_DISPLAY),
> DEFINE_BUS_MASTER("LCDIF", IMX8MQ_ICM_LCDIF, IMX8MQ_ICN_DISPLAY),
> - DEFINE_BUS_INTERCONNECT("PL301_DISPLAY", IMX8MQ_ICN_DISPLAY, NULL, IMX8MQ_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("PL301_DISPLAY", IMX8MQ_ICN_DISPLAY, IMX8MQ_ICN_MAIN),
>
> /* AUDIO */
> DEFINE_BUS_MASTER("SDMA2", IMX8MQ_ICM_SDMA2, IMX8MQ_ICN_AUDIO),
> - DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MQ_ICN_AUDIO, NULL, IMX8MQ_ICN_DISPLAY),
> + DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MQ_ICN_AUDIO, IMX8MQ_ICN_DISPLAY),
>
> /* ENET */
> DEFINE_BUS_MASTER("ENET", IMX8MQ_ICM_ENET, IMX8MQ_ICN_ENET),
> - DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MQ_ICN_ENET, NULL, IMX8MQ_ICN_MAIN),
> + DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MQ_ICN_ENET, IMX8MQ_ICN_MAIN),
>
> /* OTHER */
> DEFINE_BUS_MASTER("SDMA1", IMX8MQ_ICM_SDMA1, IMX8MQ_ICN_MAIN),
> @@ -76,7 +63,7 @@ static struct imx_icc_node_desc nodes[] = {
> DEFINE_BUS_MASTER("USDHC2", IMX8MQ_ICM_USDHC2, IMX8MQ_ICN_MAIN),
> DEFINE_BUS_MASTER("PCIE1", IMX8MQ_ICM_PCIE1, IMX8MQ_ICN_MAIN),
> DEFINE_BUS_MASTER("PCIE2", IMX8MQ_ICM_PCIE2, IMX8MQ_ICN_MAIN),
> - DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MQ_ICN_MAIN, NULL,
> + DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MQ_ICN_MAIN,
> IMX8MQ_ICN_NOC, IMX8MQ_ICS_OCRAM),
> };
>
> --
> 2.31.1
>
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